- test-drb@ccmp.vtda.org - classiccmp.org

Computers with ports coming out the front?

by cb＠mythtech.net

>I am trying to identify various computers that have had their ports >situated in the front of the chassis as opposed to the back. > >The Atari 800 would be one example (game ports in the front). Are there >any other examples anyone can think of, especially where peripheral (disk, >printer) or perhaps network ports are concerned? Didn't the IBM PCjr have two aux sockets on the front for game cartridges and I thought there was a printer interface that could use those sockets, and a floppy drive interface as well (could be wrong). And of course Mac's up to the Mac Plus have the keyboard port in the front, as well as I have seen some old PC clones like that (but I suspect that isn't exactly what you are looking for). -chris <http://www.mythtech.net>

23 years, 4 months

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The ACE is recovering :-)

by philpem＠dsl.pipex.com

Hi all, I've finally found the glitch in my Jupiter Ace. When the power supply was momentarily reversed (and applied to the I/O port), the CPU (a NEC D780C) and one of the RAMs (NatSemi MM2114) packed up. After replacing the CPU with a spare (OK, I pinched it out of a Toshiba HX-10 MSX), I've managed to perform a bit of testing. With the CPU out, everything looked good. When I powered up and probed all the data and I/O lines, D7 was locked to 0V and D6 was sitting at around 2.5V. Obviously, something was overloading the Z80's data bus, causing it to overheat significantly. After removing the RAM (and nearly pulling up four pads), the Z80 seems to be running fine. RFSH is pulsing, as are M1 and CLK. The data and address lines look OK on my scope, too. So, it looks like the Z80 bit the dust when the PSU touched the I/O port, then it proceeded to dump 9V into D6 and D7. After that, it let out the magic smoke. Thankfully both ROMs (TMS2532s - TI's clone of the 2732) seem to be OK. The only "interesting" thing is that the current draw is around 500mA with everything except one of the RAMs and the CPU fitted. With the CPU (a Sharp LH0080A) fitted, the current consumption rises to approx. 620mA. Can someone with a working Ace please check the current consumption of their unit for me? Later. -- Phil. philpem(a)dsl.pipex.com http://www.philpem.dsl.pipex.com/

23 years, 4 months

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Mac SE/30 monitor

by drido＠optushome.com.au

>perhaps a bit uncommon question, but does anyone in (preferrably middle) >Europe have a 9" crt tube for Mac SE/30? I suppose it's the same as in >SE, the box definitely looks the same. I've broken mine by accident, and >really would like to use this box ;) The CRT from an SE would work. Mono CRTs such as these are usually interchangable (at least the ones that I have changed), but if you use one >from a different (ie, not a Mac SE or SE/30) you'll probable have to change to yoke which may be more than you want a do (though on a mono display alignment is pretty easy). My first Mac was a Plus that has been dropped, I replaced the CRT with an Amber one removed from a luggable XT. It was the same size, mounting and pinout. The yoke from the original CRT fit okay.

23 years, 4 months

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OT: Detachable Penis (was Re: 1977 Apple II for sale.)

by cb＠mythtech.net

>> > He had to talk the guy down in price but he got it and went home >> > and put it back on, relieved he didn't have to sit down to pee anymore. >> >> "... for a dollar ninety-nine!" > >You must be thinking of a different song. He talked him down from $22 to >$17. Seymore Crelbourn bought Audry 2 "for a dollar ninety-nine" -chris <http://www.mythtech.net>

23 years, 4 months

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Computer Audio Tape Formats

by dwightk.elvey＠amd.com

>From: pete(a)dunnington.u-net.com > >On Dec 17, 20:11, John Lawson wrote: >> Sheeesh!!! No excuse for posting before checking references.... >> >> Another Senior Moment > >We're all having them tonight, it seems :-) > While I can get a senior discount at restaurants, that doesn't mean I'm having a senior moment. Does it? Dwight

23 years, 4 months

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Computers with ports coming out the front?

by cb＠mythtech.net

> I submit for your consideration, the "Gyro Mouse"... having gyros on >the two axes - the object being you hold it in mid-air and wave it around >to move the cursor, etc. (It was wired, BTW) > > I saw one years ago, had to have it, and soon found out it's obvious >design flaw... you try keeping your arm and hand and mouse off the desk >for hours at a time.... I don't think the Gyro Mouse was ever meant as a normal mouse replacement. I think it was meant for doing presentations, where you would most likely not have a surface to run the mouse over as you would be standing in the front of some group, and could do nothing more than wave your hand. In that context, the design was fantastic... but yeah, I think it would have been a PITA to use in place of a normal mouse. >PS: People who use mice have clean desks, and Y'll know what *that* is a >sign of. Gimme a nice trackball, any day.... I use a mouse (two of them, one for my Mac, one for my PC), also have two keyboards... but I hardly have a clean desk... I have just barely enough room to move the mice on a pad (at current, I have my soda cup sitting on the corner of the pad as it was the only clear spot on my desk). I just turn the mouse tracking speed WAY up, so that I can cover the screen with just a slight flick of the wrist. -chris <http://www.mythtech.net>

23 years, 4 months

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Computers with ports coming out the front?

by Robert_Feldman＠jdedwards.com

I've always thought that the proper place for ports on a _desk-top_ system is on the side: easy to get to the ports and you don't have the cable connectors sticking out the back, where they add to the depth, which can be a problem on a narrow countertop. When I built my first IBM-PC clone (in a nice cherry-stained wooden case), I turned the motherboard 90 degrees CW so the ports were on the right. I also made brackets from cookie-sheet aluminum to mount the disk drives and power supply over the (now) front of the motherboard, resulting in a nice, shallow case. Bob -----Original Message----- From: Sellam Ismail [mailto:foo@siconic.com] Sent: Tuesday, December 17, 2002 5:45 AM To: cctalk(a)classiccmp.org Subject: Re: Computers with ports coming out the front? On Tue, 17 Dec 2002, Fred Cisin (XenoSoft) wrote: > On a machine that doesn't sustain much floppy activity, > (or uses external drives), if you face the disk drives towards the back, > then the ports on your PC are out front where God intended. Indeed, a friend of mine who owns a business that makes rackmount systems made a special model for a customer where they pretty much did this. They put the mounting flange on the back of the box, making it the front, and added cut-outs for the disk drives. Sellam Ismail Vintage Computer Festival ---------------------------------------------------------------------------- -- International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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Computers with ports coming out the front?

by Robert_Feldman＠jdedwards.com

There was an article on scratch-building models in a recent Model Railroad Craftsman magazine that said that, no matter how big your work bench, sooner or later, you'll end up with about two square feet of usable, clear workspace. BTW, I use an arcade model track ball that was a prototype for a museum exhibit installation 10 years ago (and thus on topic). I've only needed to oil the bearings once, about 6 months ago. Never had to clean it. Try that with a mouse! Bob -----Original Message----- From: chris [mailto:cb@mythtech.net] Sent: Wednesday, December 18, 2002 1:39 PM To: Classic Computer Subject: RE: Computers with ports coming out the front? <snip> >PS: People who use mice have clean desks, and Y'll know what *that* is a >sign of. Gimme a nice trackball, any day.... I use a mouse (two of them, one for my Mac, one for my PC), also have two keyboards... but I hardly have a clean desk... I have just barely enough room to move the mice on a pad (at current, I have my soda cup sitting on the corner of the pad as it was the only clear spot on my desk). I just turn the mouse tracking speed WAY up, so that I can cover the screen with just a slight flick of the wrist. -chris <http://www.mythtech.net

23 years, 4 months

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working 11/70s available for $$$, one w/PEP-70 & hypercache

by uban＠ubanproductions.com

Hello, I just scored a PEP-70/Hypercache pair from a guy on eBay and in my conversations with him, I've learned that he has a couple of working 11/70s, one with conventional MOS memory and the other with a PEP-70/Hypercache pair. He is a dealer and I have no association with him other than my eBay purchase. He seems like a nice enough fellow and these things are not getting any easier to find. So, for those who are inclined to spend money on their hobby computers instead of on PCs, here is the info. DaveM(a)systechaz.com 602-437-0100 Happy Holidays! --tom

23 years, 4 months

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AMD2901CDC chip available

by ken＠seefried.com

From: Ethan Dicks <erd_6502(a)yahoo.com> > > In particular, I recognize > the 2910 as appearing on the Tandon SASI<->ST506 board in the Commodore > D9060 and D9090 drives. ISTR it's much like the 2901 but wider than 4 > bits - kind of an integrated building block for those designers who are > more concerned with real estate than extracting every last feature the > 2901 has to offer, i.e., a compact short-cut. Nope, 2910 is a microprogram address sequencer for the 2901 series. There are, however, a number of "2901 with more bits" chips, however. The IDT IDT49402/IDT49410A is the equivalent of 4 2901 slices (16-bits) + the apropos microprogram sequencer logic. Cypress had the CY7C9101, which was similar. WSI had the WS59032, which consisted of 8 2901 equivalents. Innovasic has the IA59032, which is an ASIC reimplimentation of the WSI chip and is still availible. Ken

23 years, 4 months

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Old TI analog sound chip; info? [THANKS]

by root＠parse.com

Thanks to all who replied, it was the 76477 chip I was thinking of, and thanks for the links to the PDF files! Appreciate it! Cheers, -RK -- Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers! Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting and Training at www.parse.com

23 years, 4 months

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OT: NCR 6299 Raid subsystems

by pat＠purdueriots.com

I've got a bunch of NCR (Symbios) Class 6299 Model 1100 raid subsystems, and they have a DA-15 console port, for which I can't find any pinout information. Does anyone have a pinout available or information on these? I've tried googling everything I could think of, but no luck. I know the information is in their 'Site Preparation Guide', which Purdue had, but got lost. Also, NCR doesn't seem to carry documentation for these on their website. Thanks for any information. Pat -- Purdue Universtiy ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www-rcd.cc.purdue.edu

23 years, 4 months

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connecting 33 to PDP-8

by pete＠dunnington.u-net.com

On Dec 17, 21:40, Charles wrote: > I have a PDP-8/I and a Model 33 but there are no connectors at > all. The serial interface card (? M709) is there and if I run > clipleads to the appropriate pins on its backplane socket with a > series resistor to +12v it works, both keyboard and printer. > > What pieces am I missing? The above discussion is beyond my > current understanding of DEC interconnect hardware. Should there > be a card that plugs into the backplane somewhere, that has a > pigtail hanging from it, or what? If so, what part number should I > be searching for? There possibly should, but I don't know much about the details of an 8/I. Are there wires running from those pins to another slot? An 8/E is Omnibus, and the serial signals don't appear anywhere on the backplane, so the only access is via the Berg connector on the (quad height) interface card. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Computer Audio Tape Formats

by pete＠dunnington.u-net.com

On Dec 17, 15:58, Sellam Ismail wrote: > On Wed, 18 Dec 2002 pete(a)dunnington.u-net.com wrote: > > > I think the Commodore PET uses modified CUTS. It records each block > > twice, which is why it's relatively slow, but also pretty robust. > > If it records each block twice, and one block is bad, which of the two do > you trust? > > (Or is there a checksum involved too?) The one with the good checksum, I expect. There is a check of some sort, but I don't know the details. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Valuable MicroVAX-II (?)

by healyzh＠aracnet.com

> >>I'd expect that for one with a SCSI Qbus module, but this system seems > >>rather vanilla, except for the multiple RD54s. > >> > >>Who'd a thunk it? As has been pointed out, someone is most likely after the 3 RD54's. The thing to remember is that there are still systems being used commercially, or by the Government that use these drives. The cost of qualifying different hardware to move to SCSI far outweighs the cost of obtaining RD54's. > >Anyone have any ideas as to why most BA123s are missing the door that > >covers the operator's panel? Is it just easily broken and lost? > > > > > I think they were shipped broken. You had to be very careful using > that door, or the pegs (hinges) would break off. Since all the intresting > buttons were under the door, it needed to be opened fairly frequently. I had one that was intact. The top peg that holds it in place and makes up the hinge is now broken. I'm still ticked off at my Mother over that one. I had the panel off, and she knocked it over on a hardwood floor. The result, the peg broke off. :^( That was a few years ago, I've still got the peg, and one of these years I'll try and patch it. Zane

23 years, 4 months

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OT: Detachable Penis (was Re: 1977 Apple II for sale.)

by cb＠mythtech.net

>> Seymore Crelbourn bought Audry 2 "for a dollar ninety-nine" > >Thank Dog google knows what to do with misspelled search terms. It's >"Seymour Krelborn bought Audrey 2" Yeah, I figured when I was writing it that I was spelling his name wrong... what I didn't expect was that he got Audry 2 for 4 cents cheaper than I said... he bought it from the old Chinese man for a dollar ninety-five (that fact dawned on me later as I had the song stuck in my head). -chris <http://www.mythtech.net>

23 years, 4 months

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connecting 33 to PDP-8

by Qstieee＠aol.com

This document talks about the jumper options on the KL8E: <A HREF="http://www.cs.uiowa.edu/~jones/pdp8/hard8e/kl8e.html">http://www.cs.uiowa.edu/~jones/pdp8/hard8e/kl8e.html</A> There is also good information and a knowledgeable contact at: <A HREF="http://www.pdp8.net">http://www.pdp8.net</A>

23 years, 4 months

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connecting 33 to PDP-8

by charlesmorris＠direcway.com

On Tue, 17 Dec 2002 16:11:32 -0600, you wrote: >> The -8/E has an M8650 (KL8E) which I've been using with RS232. However, >> I have 40-way Berg connectors, and the proper AMP flat 8-way Mate-N-Lok >> connector shells for the 20mA loop, and the male and female pins... > >Sounds like you have the basics covered. Don't forget the short jumper >wire at the Berg end that directs the TTL output of the KL8E shift >register to the 20mA output circuit. It's a different loop than the >one you should have right now on your EIA cable. I have a PDP-8/I and a Model 33 but there are no connectors at all. The serial interface card (? M709) is there and if I run clipleads to the appropriate pins on its backplane socket with a series resistor to +12v it works, both keyboard and printer. What pieces am I missing? The above discussion is beyond my current understanding of DEC interconnect hardware. Should there be a card that plugs into the backplane somewhere, that has a pigtail hanging from it, or what? If so, what part number should I be searching for? thanks Charles

23 years, 4 months

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Detachable Penis (was Re: 1977 Apple II for sale.)

by Fred.van.Kempen＠microwalt.nl

And yes, we do have the MP3 of that available.. :) --f > -----Original Message----- > From: Sellam Ismail [mailto:foo@siconic.com] > Sent: Tuesday, December 17, 2002 11:40 AM > To: cctalk(a)classiccmp.org > Subject: OT: Detachable Penis (was Re: 1977 Apple II for sale.) > > > On Tue, 17 Dec 2002, Cameron Kaiser wrote: > > > > He had to talk the guy down in price but he got it and went home > > > and put it back on, relieved he didn't have to sit down > to pee anymore. > > > > "... for a dollar ninety-nine!" > > You must be thinking of a different song. He talked him down > from $22 to > $17. > > Lyrics here: > > http://www.lyricsfreak.com/k/king-missile/16758.htm > > :) > > Sellam Ismail Vintage > Computer Festival > -------------------------------------------------------------- > ---------------- > International Man of Intrigue and Danger > http://www.vintage.org > > * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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Fw: New home for DEC 3000 model 300LX [Norway]

by rschaefe＠gcfn.org

A little far for me to drive... Bob ----- Original Message ----- From: "Arne Bergseth" <Arne.Bergseth(a)dnv.com> Newsgroups: comp.os.vms Sent: Tuesday, December 17, 2002 3:13 PM Subject: New home for DEC 3000 model 300LX > DEC 3000 model 300 available for VMS hobbyist. > Workstation with Alpha 21064 processor, 64 MB memory and 1.05 GB disk, > has been taken out of use and need a new home. > I already have more than I can accomodate. > The machine is located in Norway, the system box can possibly be shipped > by mail if you are willing to cover the postage. > If you also want the VRC21-HA monitor you will have to come get it in > Sandvika in Norway. > > Regards, > Arne Bergseth >

23 years, 4 months

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Computer Audio Tape Formats

by dwightk.elvey＠amd.com

>From: pete(a)dunnington.u-net.com > >On Dec 18, 0:37, pete@mindy wrote: > >> "101100" at 1200, you'll see it's actually a Manchester code: >> >> __ _____ __ __ _____ >> | |__| |__| |__| |_____| | >> >> --1-- --0-- --1-- --1-- --0-- --0-- > >Oops, I take that back :-) Although the Sorcerer manuals describe it as a >Manchester encoder/decoder, what it puts on the tape is FSK. I just >checked the schematic and circuit description. > >Dwight hasn't exactly described Manchester encoding either, though. > Manchester encoding puts the clock transition in the *centre* of each >cell, and the polarity of the transition determines whether it's a 0 or a >1. There's a phase shift at the cell boundary if necessary. His diagram >*could* be Manchester encoding if you shift the 0s and 1s slightly to the >left, except for the last bit. It should be (maybe 'd' for "down" and 'u' >for "up" makes it more obvious): > > ___ _ ___ _ ___ > |___| |_| |_| |___| > > -0- -1- -1- -0- -0- -1- > d u u d d u > >It's too late at night here, for any more of this :-) Hi Pete Yes, you are correct. The difference in the Poly format was between RZ vers NRZ. I think Manchester only refers to the clocking, as you described. Dwight > >-- >Pete Peter Turnbull > Network Manager > University of York >

23 years, 4 months

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Need a home for some HP gear - UK.

by tim.myers＠protasis.co.uk

I need to find a home for 2 HP Laboratory Automation Systems. They realy need to be moved before the end of the year (or I need a firm commitment to remove them very early in the new year), or they're going to have to go in the skip, much as this pains me. The systems are HP3350 Laboratory Automation Systems, each consists of: HP-1000 F Series Computer, HP 12990B Memory Extender HP 12979B 1/O Extender HP 7970E Tape Drive 2xHP 7925 Disk Drives Each system is housed in 2 19" racks. I also have 1xHP2608A printer, 3xHP2393A terminals, and an HP-1000 A700 machine (also in a 19" rack), lots of documentation, and tapes. You'll have to collect them, or pay my costs for hiring a van and a mate to deliver (within a reasonable distance) them to you (which I'm happy to do over the Christmas Period), and they'll need to go on the ground floor, unless you have a lift. I'm not making any charge for these systems. Collection from Ellesmere Port, Wirral. If you need pictures etc., I can mail then to you. You can call me on 07980 859 383 to discuss if required. I've not much time at the moment, so I can't monitor the list, so please email me at tim.myers(a)protasisREMOVEME.co.uk if you're interested. I'd hate for these to go in the skip, but I have to clear the place theyr'e in, and have no storage of my own. I'm also Ebaying my PDP-11/73s complete with VT-320s. Tim.

23 years, 4 months

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Computer Audio Tape Formats

by pete＠dunnington.u-net.com

On Dec 17, 20:11, John Lawson wrote: > Sheeesh!!! No excuse for posting before checking references.... > > Another Senior Moment We're all having them tonight, it seems :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Computer Audio Tape Formats

by pete＠dunnington.u-net.com

On Dec 18, 0:37, pete@mindy wrote: > "101100" at 1200, you'll see it's actually a Manchester code: > > __ _____ __ __ _____ > | |__| |__| |__| |_____| | > > --1-- --0-- --1-- --1-- --0-- --0-- Oops, I take that back :-) Although the Sorcerer manuals describe it as a Manchester encoder/decoder, what it puts on the tape is FSK. I just checked the schematic and circuit description. Dwight hasn't exactly described Manchester encoding either, though. Manchester encoding puts the clock transition in the *centre* of each cell, and the polarity of the transition determines whether it's a 0 or a 1. There's a phase shift at the cell boundary if necessary. His diagram *could* be Manchester encoding if you shift the 0s and 1s slightly to the left, except for the last bit. It should be (maybe 'd' for "down" and 'u' for "up" makes it more obvious): ___ _ ___ _ ___ |___| |_| |_| |___| -0- -1- -1- -0- -0- -1- d u u d d u It's too late at night here, for any more of this :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Computers with ports coming out the front?

by vassilip＠dsl.cis.upenn.edu

I am amazed that Tony didn't mention this, but the BBC micro had a number of expansion connectors under the keyboard facing towards the front of the machine. To access these ports, you had to lift the whole machine and plug IDC terminated ribbon cables. As I recall, you had the 1MHz expansion bus, the printer port, the Tube (2nd processor bus) and a disk interface connector. You also had a power output connector allowing you to power external devices (e.g. external floppies). The HP Integral PC also had two connectors on the front. These were HIL connectors for low-speed input devices (keyboard, mouse, digitizing tablet, etc). **vp

23 years, 4 months

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Computer Audio Tape Formats

by dwightk.elvey＠amd.com

>From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com> > >>From: tlindner(a)ix.netcom.com >> >>> Here's one: >>> >>> http://www.kim-1.com/usrman.htm#E >> >>Ahh, this is really diffferent! >> >>This uses: >> >>'0 bit' - 18 square cycles at 3700 Hz. >> 6 square cycles at 2400 Hz. >> >>'1 bit" - 9 square cycles at 3700 Hz. >> 12 square cycles at 2400 Hz. >> >>Both are the same length (7.452 microseconds). >> >>As you can probably tell, I am currently anaylizing this at a very low >>level. >> >>-- >>tim lindner tlindner(a)ix.netcom.com >> > >Hi > Here is one that is even a little different still. >It is what is called Manchester encoding, using biphase >clocking. You don't indicate 1 or 0, you indicate a change >by a quick clock and no change by a long clock. > It looks something like this: > > ___ _ ___ _ > |___| |_| |_| |______ Opps! Shuld have been: ___ _ ___ _ ___ |___| |_| |_| |___| > > Depending on past history, this might be: > > 0 0 1 1 0 0 0 > > or > > 1 1 0 0 1 1 1 > > > This is the type of encoding used on my Poly88 for >what they call PolyPhase. This runs at 2400 baud. > There is a standard called Byte format that uses 300 baud >and the two tones 1200 and 2400. > Besides the type of encoding, you also need to know >what the record formats looks like. Do you have one long >record for the entire file? What does the header look like? >Is it synchronous or asynchronous? Is there parity, check sum, >CRC or ECC? > There are a lot of things that need to be built up into >a complete tape decoder. A tape writer would be used >by more than a tape reader. One should only need to read >the tape once but many people would often like to create >a tape from that same data. You really want both. > One should also note that most audio tape to digital >inputs on these old computers filtered the signal some >to optimize the audio signal for decode. This was done >on both read and write of the signal. >Dwight > > >

23 years, 4 months

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Computer Audio Tape Formats

by dwightk.elvey＠amd.com

>From: tlindner(a)ix.netcom.com > >> Here's one: >> >> http://www.kim-1.com/usrman.htm#E > >Ahh, this is really diffferent! > >This uses: > >'0 bit' - 18 square cycles at 3700 Hz. > 6 square cycles at 2400 Hz. > >'1 bit" - 9 square cycles at 3700 Hz. > 12 square cycles at 2400 Hz. > >Both are the same length (7.452 microseconds). > >As you can probably tell, I am currently anaylizing this at a very low >level. > >-- >tim lindner tlindner(a)ix.netcom.com > Hi Here is one that is even a little different still. It is what is called Manchester encoding, using biphase clocking. You don't indicate 1 or 0, you indicate a change by a quick clock and no change by a long clock. It looks something like this: ___ _ ___ _ |___| |_| |_| |______ Depending on past history, this might be: 0 0 1 1 0 0 0 or 1 1 0 0 1 1 1 This is the type of encoding used on my Poly88 for what they call PolyPhase. This runs at 2400 baud. There is a standard called Byte format that uses 300 baud and the two tones 1200 and 2400. Besides the type of encoding, you also need to know what the record formats looks like. Do you have one long record for the entire file? What does the header look like? Is it synchronous or asynchronous? Is there parity, check sum, CRC or ECC? There are a lot of things that need to be built up into a complete tape decoder. A tape writer would be used by more than a tape reader. One should only need to read the tape once but many people would often like to create a tape from that same data. You really want both. One should also note that most audio tape to digital inputs on these old computers filtered the signal some to optimize the audio signal for decode. This was done on both read and write of the signal. Dwight

23 years, 4 months

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Computers with ports coming out the front?

by pete＠dunnington.u-net.com

On Dec 17, 5:22, vassilip(a)dsl.cis.upenn.edu wrote: > I am amazed that Tony didn't mention this, but the BBC micro had a number > of expansion connectors under the keyboard facing towards the front of > the machine. To access these ports, you had to lift the whole machine > and plug IDC terminated ribbon cables. As I recall, you had the 1MHz > expansion bus, the printer port, the Tube (2nd processor bus) and a > disk interface connector. You also had a power output connector allowing > you to power external devices (e.g. external floppies). >From left to right, 34-pin floppy interface, 26-pin parallel printer, 20-pin user port, 34-pin 1MHz bus, 40-pin Tube (second processor interface). -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Computer Audio Tape Formats

by pete＠dunnington.u-net.com

On Dec 17, 13:50, tim lindner wrote: > I am looking for information regarding how various computers wrote > information to audio tapes. > I am contemplating creating an audio tape anaylzer to help me recover > some data. I would like to make the program useful to thoes outside the > Color Computer community. But first I need to understand all of the > different methods used to put data on audio tape. Look up "Kansas City" and "CUTS" on the web... many machines used some derivative. For 300 baud: logic 0 is 4 cycles of a 1.2kHz tone logic 1 is 8 cycles of a 2.4kHz tone lead-in is 2.4kHz, followed by a zero byte Similarly for 1200 baud but fewer cycles. CUTS (Computer Users Tape Interface) was derived from KC format, which was so called because it came out of a meeting held in Kansas City in 1975. It's backwards compatible. Also look up Don Tarbell's system. I can't remember what the tones were, but it's about 600 baud, IIRC. None of this tells you about the format of the data, of course -- block headers (if any), checksums/CRCs, etc. That tended to vary. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Computer Audio Tape Formats

by glenslick＠hotmail.com

Here's one: http://www.kim-1.com/usrman.htm#E >From: tlindner(a)ix.netcom.com (tim lindner) >Reply-To: cctalk(a)classiccmp.org >To: classiccmp(a)classiccmp.org (Classic Computers) >Subject: Computer Audio Tape Formats >Date: Tue, 17 Dec 2002 13:50:31 -0800 > >I am looking for information regarding how various computers wrote >information to audio tapes. _________________________________________________________________ Tired of spam? Get advanced junk mail protection with MSN 8. http://join.msn.com/?page=features/junkmail

23 years, 4 months

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Computer Audio Tape Formats

by tlindner＠ix.netcom.com

I am looking for information regarding how various computers wrote information to audio tapes. For example, the Tandy Color Computer wrote ones and zeros to audio tape in the following format: 'one bit': one sinusoidal cycle @ 2400 Hertz. 'zero bit': one sinusoidal cycle @ 1200 Hertz. The bit rate is variable on a CoCo tape. But averages to about 1500 bits per second. I am contemplating creating an audio tape anaylzer to help me recover some data. I would like to make the program useful to thoes outside the Color Computer community. But first I need to understand all of the different methods used to put data on audio tape. -- tim lindner tlindner(a)ix.netcom.com

23 years, 4 months

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Amiga and X-windows

by ghldbrd＠ccp.com

Thanks to a post here by Curt Nelson, I am the proud owner now of some interesting Amiga goodies . . . . I have a question to all those Amigaphiles out there: I have a copy of X Window System by GfxBase. It looks like a graphic terminal emulation for *nix systems, which looks like a neat toy for playing with my Linux box. Have any of you ever played with this, or even seen it in action? I do have a 10 Base 2 Ethernet card for the PC here, but other than that, my networking experience is zero. Looks like I'm going to be learning some new stuff over the next few months. Gary Hildebrand St. Joseph, MO

23 years, 4 months

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IBM 5150 for sale

by vcf＠siconic.com

I am passing this message along to anyone (presumably in the UK) who is interested in an IBM 5150. Please reply to the original sender. Reply-to: <slipperysli(a)hotmail.com> or <mail(a)slibob.com> ---------- Forwarded message ---------- Date: Tue, 10 Dec 2002 12:29:10 +0000 From: Simon Taylor <slipperysli(a)hotmail.com> Reply-To: mail(a)slibob.com Subject: IBM 5150 Hi I have a 1981 IBM 5150, complete with monitor and tracotr-feed dot-matrix printer which I am hoping to sell. Are you interested? If you aren't please could you put me in touch with anyone who might be interested? Please let me know if you can or can't help me. Thanks very much Simon Taylor http://www.slibob.co.uk/ Tel: 07021 118445 Txt: 07951 704272 -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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Sinclair QL

by pegran＠online.no

Hello. After having stumbled accross the page http://www.classiccmp.org/pipermail/cctech/2002-October/003501.html, I wonder if you have any Sinclair QLs left, what state they are in, and how much they cost. Regards, Per Granaune

23 years, 4 months

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Apple Mac SE/30 monitor available?

by freddy＠kotelna.sk

Hello again, perhaps a bit uncommon question, but does anyone in (preferrably middle) Europe have a 9" crt tube for Mac SE/30? I suppose it's the same as in SE, the box definitely looks the same. I've broken mine by accident, and really would like to use this box ;) Thanks in advance, -- freddy ...for more info 'finger freddy(a)kotol.kotelna.sk'

23 years, 4 months

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Another Decmate III available

by trestivo＠concentric.net

To all, the first Decmate III sold on Ebay, another one is now posted. If your interested take a look at http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=179&item=2082422826 thanks, and happy holidays to all!

23 years, 4 months

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Need a home for some HP gear - UK.

by tim.myers＠protasis.co.uk

Here are some pictures for those of you who maybe interested : http://www.computer-museum.org.uk/images/P0001355.jpg http://www.computer-museum.org.uk/images/P0001356.jpg http://www.computer-museum.org.uk/images/P0001357.jpg http://www.computer-museum.org.uk/images/P0001358.jpg http://www.computer-museum.org.uk/images/P0001364.jpg http://www.computer-museum.org.uk/images/P0001360.jpg Tim.

23 years, 4 months

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Ebay [was: Re: The ACE is recovering :-)]

by pete＠dunnington.u-net.com

On Dec 17, 17:09, Philip Pemberton wrote: > My problem is that the shipping price he's given me is for Germany... > I think I'm going to stuff EUR8 in an envelope and send it (like you said), > it's the easiest way to get this sorted out... Postage Austria <--> UK isn't much different from Austria <--> (anywhere else in EC), so I'd just send him EUR8 and see what happens. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Looking for certain software packaging ($$$)

by vcf＠siconic.com

I am searching out any retail software packaging that conforms to the following description: The front cover of the packaging has a flap that opens up (like a book) to reveal a manual or pamphlet inside. The flap must be part of the box itself, and not part of a sleeve that slips over the box. I have Delrina WinFax Pro 3.0 which almost fits this description but the flap is part of a sleeve that fits over the main box. Any software in question must have been published or put on the market prior to March of 1996. One possible example may be Delrina WinFax Pro 4.0 (which is what I was originally searching for a couple months back). If you have any software packaging that fits this description, please contact me directly at <sellam(a)vintage.org>. There is a bounty for this! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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Ebay [was: Re: The ACE is recovering :-)]

by Antonio.Carlini＠riverstonenet.com

>rating, 99% positive. The problem? He's given me a shipping price of EUR2.55 >per batch of three chips, plus EUR1 for three ROMs. I've ordered six ROMs, >so that comes to EUR3.55 x 2 = 7.10. But he seems to be ignoring my mails >requesting a postage price for me. Bear in mind I'm in England (ho hum). The What's the problem? If you are happy about the total price (7.10euro) for the ROMs just pop 8 euro into an envelope with a letter wrapped round them indicating where you want them posted to. Include an email address and I expect he'll get back to you if there is a problem. This has always worked for me ... both with Europe and the US. Antonio

23 years, 4 months

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Little score, & possible VAX 630 rescue...

by dwoyciesjes＠comcast.net

On the way home today, I decided to stop at the local Goodwill, in my (never-ending?) search for Mac ADB keyboard cables. Well, I picked up a working Mac SE/30 w/ keyboard for $5.00, and a 18" x 30" Guiness chalkboard for $12.00. No keyboard cable with the Mac, though... Sigh... The search continues... A local used computer shop did net me a Mac keyboard and cable, for $10. Now, on to the Vax. I have a lead on a forgotten DEC Industrial Vax 630. I don't know what in it or anything yet. It's just the (about) 30" x 19" x 10" rackmount unit. Apparently, about 10 -12 years ago, DEC had a contract with a Southern CT company, that makes industrial keyboards and mice. DEC shipped them the Vax, to test the devices, all of them. They never asked for the machine back. The moniter that went with it has since died. That may still be around, but I don't know. As far as they know, the Vax still works. Well, at least last time the powered it up. I'm waiting to see what the company wants to do with it, but if I tell them someone wants to buy it, that may help. It's a heavy little beast, so shipping may be a bit much. They'll probably prefer that you pick it up, but I'm sure something can be worked out if necessary. Contact me off-list. -- ---Dave Woyciesjes ---ICQ# 905818

23 years, 4 months

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RS232 or Parallel port based keyboards and joysticks

by Robert_Feldman＠jdedwards.com

The Palmtop Paper's Online Store has KeyMate adaptors and software that allow any PS/2-plug PC keyboard to be used with the HP 200LX's serial port or IR port (under MS-DOS 5.0). $69.95 +s/h. http://www.palmtoppaper.com/store/asp/product.asp?product=98 "Ram & Suganthi M." wrote: > > Hi, > > Does anyone know where I can get a keyboard that either plugs into an RS232 > / RS422 or Parallel Port? Ditto for a joystick. I want to connect a > keyboard to a transputer array for stand-alone operation and I already have > RS232 / Parallel ports on the array. > > Thanks, > > Ram

23 years, 4 months

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RS232 or Parallel port based keyboards and joysticks

by ram_suganthi＠hotmail.com

Hi, Does anyone know where I can get a keyboard that either plugs into an RS232 / RS422 or Parallel Port? Ditto for a joystick. I want to connect a keyboard to a transputer array for stand-alone operation and I already have RS232 / Parallel ports on the array. Thanks, Ram _________________________________________________________________ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years, 4 months

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Looking for certain software packaging ($$$)

by Robert_Feldman＠jdedwards.com

ISTR that the Traveling Software word processor (software on cassette tape) I bought for a TRS Model 100 was packaged like that. I no longer have it, but the date was early 90's. Bob -----Original Message----- From: Dan Veeneman [mailto:dan@ekoan.com] Sent: Tuesday, December 17, 2002 6:52 AM To: cctalk(a)classiccmp.org Subject: Re: Looking for certain software packaging ($$$) At 06:26 AM 12/17/02 -0800, you wrote: >Would any Commodore cassette software do? >I think I have a c64 or vic 20 game that was packaged like that Almost all of the Intellivision game cartridges were packaged like that as well. I don't know if that counts as "software" for Sellam's purposes or not. Cheers, Dan

23 years, 4 months

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Computers with ports coming out the front?

by Robert_Feldman＠jdedwards.com

Yes, pin 7 of the modem port is for +12V. The pinout of the DE-9P (except for some early boards with a female DE-9) is: 1 Gnd 2 TXD 3 (not used) 4 MSB (Modem Status Bit) 5 CTS 6 RXD 7 +12V 8 MCB (Modem Control Bit) 9 RI The Tech manual goes on to say all signals are TTL, and the interface is "extremely vulnerable to damage through misuse." Also, some modems with RS-232C connectors need an external adapter box so that the OI isn't damaged. modem port Bob -----Original Message----- From: Gary Hildebrand [mailto:ghldbrd@ccp.com] Sent: Monday, December 16, 2002 11:33 PM To: cctalk(a)classiccmp.org Subject: Re: Computers with ports coming out the front? Lawrence Walker wrote: > > Yup, the whole shebang. External Battery, keyboard, printer, video, > serial RS232 and Modem. BTW what was the difference between the > modem and RS232 ports ? > > Lawrence Besides number of pins . . . . I think the 9 pin Modem port was for the accessory modem and has DC feeding the box that fits in the disk bay. The RS232 could be configured to drive a serial printer which was the common interface back then, especially on daisywheels. Gary Hildebrand St. Joseph, MO

23 years, 4 months

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Computers with ports coming out the front?

by foxnhare＠bigvalley.net

Heh.. While looking at a Transactor Magazine tonite (fomr something else), I had noticed this bit in the new Products Section (from January 1986) Commodore 64 Remote Keyboard Conversion Kit What it is - an extension ribbon cable for the 64 keyboard top with shells for the PCboard bottom and Keyboard top. From the news item: Remote Keyboard Conversion Kit If you have a Remote Keyboard Conversion Kit - Here's that you have: [picture of keyboard in front of bottom of 64 with ports facing the keyboard] - a keyboard for your lap, lean back-relax. - Keyboard to pass around when playing games - Keyboard not restricted in movement by 5 cables - A computer with cable plugs facing you (in the 64's design that would be Parallel user port, TV, Video, Disk Drive/Printer, Cassette and Cartridge.) - A Computer you can change cabling and accessories easily. - Color keyed to match the original unit (the brownish breadbox style) Friendly Systems, Inc. 1845 Range St. Suite A Boulder, CO 80301 (from page 77 of the Jan '86 Transactor Vol.6,Iss.4) And didn't some rack mounted 8-bits (Apple, Atari, and 64) have the ports out the front? I read about such units at major software places like EA, they were custom mountings though. ... Thinking on that you might find rack mounted PCs with forward ports too in late 80's industrial component catalogs... Larry -- 01000011 01001111 01001101 01001101 01001111 01000100 01001111 01010010 01000101 Larry Anderson - Sysop of Silicon Realms BBS (209) 754-1363 300-14.4k bps Set your 8-bit C= rigs to sail for http://www.portcommodore.com/ 01000011 01001111 01001101 01010000 01010101 01010100 01000101 01010010 01010011

23 years, 4 months

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1977 Apple II for sale. (ABECLASSIC)

by dfnr2＠yahoo.com

"Chandra Bajpai" <cbajpai(a)attbi.com> wrote: > Btw - Does anyone know who the guy at ebay user id 'abeclassic' is? I > wish I had his deep pockets...he bids on a lot of things and definitely > outspends everyone. Some times I wonder if it's worth bidding on if he > his even thinking about the same item. DEFINITELY continue to bid your price on items you want. If you lose, so be it, but make him pay at least that much, or he won't even have to use any discretion when selecting auctions. Dave __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

23 years, 4 months

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Old TI analog sound chip; info?

by dan＠ekoan.com

At 08:07 PM 12/16/02 -0600, you wrote: >I'm fairly sure Radio Shack at one time sold some of those >particular sound generator chips too. Yes, I have a SN94281 in a Radio Shack package. >I have the data sheet for the SN94281, but I'm not sure about the other >two. If it would be helpful, I can scan it. I've started to scan some of my old data sheets. The panels for the SN94281 can be found at http://www.decodesystems.com/old-ics.html Cheers, Dan http://www.decodesystems.com/wanted.html

23 years, 4 months

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Need information on TRSDOS 1.3 internals

by tim＠tim-mann.org

Sellam Ismail wrote: > Are the TRSDOS 1.3 internals documented in any of the TRS-80 reference > manuals? As far as I know, Tandy never documented the on-disk data structures for Model III TRSDOS. We were stuck figuring them out for ourselves even in the old days. They did document the assembly language interface to the OS. There's a scan of the part of the Model III manual that deals with TRSDOS 1.3 user commands and assembly-language entry points on Wade Fincher's site: http://www2.asub.arknet.edu/wade/m3trsdos.pdf -- Tim Mann tim(a)tim-mann.org http://www.tim-mann.org/

23 years, 4 months

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BIG problem with my Jupiter Ace

by Lee.Davison＠merlincommunications.com

>> There is just no pleasing some people. 8^)= >> http://zx.dyndns.org/trastero/cosas/droy/jupiter/ >> You want the .pdf near the end. > Interesting how he got blue as a background when the real Ace used > black..... I would guess he's using an RGB monitor, but can't say for sure as babelfish stops translating half way down the page. Curses! Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 4 months

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Old TI analog sound chip; info?

by Lee.Davison＠merlincommunications.com

> Anyone have the datasheet for > it online or willing to scan it in? There is also http://rgvac.978.org/chips/SN76477.pdf which is more an application note than data sheet. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 4 months

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Old TI analog sound chip; info?

by Lee.Davison＠merlincommunications.com

> I'm looking for the documentation for the olde TI analog > sound chip; this dates back to the late 70's early 80's if > my memory serves me correctly. I don't even remember the > part number. AFAIK, it had some kind of "I2L" (I squared > el) technology or somesuch, and it was mostly analog, with > some digital control (but nothing like a DSP or midi). > Anyone recall this chip? Anyone have the datasheet for > it online or willing to scan it in? SN76477N, http://rgvac.978.org/chips/sn76477datasheet.pdf > Background: I remember playing with it a *long* time ago, > and wanted to model it in software :-) I remember it well, it was the canine gonads until the AY3-8910 and it's ilk appeared. Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 4 months

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JC 80 parts and maybe a complete system

by jluclarose＠sympatico.ca

Hi, I'm a univesity student, studiying electrical engineering, in Montreal, Canada. I've been salvaging many old computer parts and I've come accross some JC80 parts. Would you be interested ? Here is what I have. Two JC80 Loop repeater, they appear to be in working condition except the batteries are dead. They would need new external or internal batteries to be fully functionnal. They power up on 120V. I couldn't veryfy them further. Trying to check what it was, I went to the University Heating plant and they showed me the whole JC80 sytem, now taken out of service, and stored for quite some time. It on a pallet, in a very relative condition, but it doesn't appear to be too beaten up (no obvious abuse, broken parts or damaged components. very dusty though :-) So If you are interested, I'd be willing to help you get in touch with the right persons, the director of the heating plant or the persons responsible for the University buildings. The guy who showed me the old system said they would probably be glad to get rid of that junk but that for now they were not planning on moving it from it's storage area. So you would have all the JC80 parts/system installed at the heating plant at University of Montreal. Are you interested ? Jean-Luc Larose VE2JWL --

23 years, 4 months

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Freeware for VAX!

by Qstieee＠aol.com

On this subject, see also http://www.process.com/openvms/index.html

23 years, 4 months

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Acquired a PDP11/44, but missing M7095

by Qstieee＠aol.com

If you go to http://www.tarinc.com/decparts.htm you'll see the M7095 on the list. I have done business with them, even visited their location.

23 years, 4 months

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Q. Who remembers the "see" editor for the ibm pc?

by techservices＠nwnetwork.net

Hi, I realize that this thread is pretty cold, but you have Google to thank for my interruption. I have been trying to track down a copy of the SEE text editor that you, Fred and Carlos, were talking about in the thread at this link: http://www.classiccmp.org/mail-archive/classiccmp/2001-09/1095.html I would appreciate very much if you could e-mail me a zipped-up archive of Michael Ouye's see.exe executable for 1984 or 1985 or point me to a working download link for same. Thank You, Dennis Harrington techservices(a)nwnetwork.net Bainbridge Island, Washington

23 years, 4 months

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Interesting Tim O'Reilly article.

by Robert_Feldman＠jdedwards.com

There was just a piece on National Public Radio's "Morning Edition" this morning (12/16/02) about how the record industry's current audit procedure makes it almost impossible for an artist to know even such basic information as how many copies of his/her CD have been sold. The section's summary is: <quote> NPR's Rick Karr reports on the latest developments in the ongoing dispute between record companies and artists over royalty payments. Two of the five major labels say they will change the way they compute royalties, to make them more transparent and less confusing. The record companies hope the changes will convince more artists to join the fight against free downloads of music on the Internet. </quote> -----Original Message----- From: Wayne M. Smith [mailto:wmsmith@earthlink.net] Sent: Friday, December 13, 2002 11:49 PM To: cctalk(a)classiccmp.org Subject: Re: Re: Interesting Tim O'Reilly article. > At 09:12 PM 12/13/02 -0800, you wrote: > >Every recording contract with a participation clause has an audit provision in > >it that allows the artist to come in with their own auditor/accountant and > >have > >full access to the books. Same is true in the movie biz. So I don't really > >know what you're referring to. > > -BZZZTTTT- Wrong answer... the recording industry contracts state that > Yes, you can ahve your contract audited, but only with a list of 'approved' > auditors, as a matter of fact if you show your contract to ANYONE you are > in violation of the contract. I don't think that's right. There are restrictions that prevent hiring an auditor on a contingency fee basis, and using an auditor who is performing an audit of the same company on behalf of another artist at the same time. I have never heard of the "approved list" you mention.

23 years, 4 months

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WD-1002-05 boards

by david＠avidguru.com

Roger, I couldn't find the thread on this to find Eric Smith's email. I have a few WD1002-05 cards. I would ship them if he want to pay a few bucks for them. do you know who might want them or want his email address is? i'd rather not just toss them out, but would like to get some small amount if they're worth anything more than postage... thx for any advice... -David Sutherland Los Angeles (Monterey Park), Calif. p.s. there's some scans of the WD1002-05 docs at: http://www.xs4all.nl/~fjkraan/comp/wd1002/index.html for Eric Smith if he is still looking ref: --- http://www.classiccmp.org/pipermail/cctech/2002-July/000626.html Roger Ivie cctech(a)classiccmp.org Tue Jul 30 20:02:01 2002 a.. Previous message: Synertek 6502 chips, 1984 date-code b.. Next message: Books c.. Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] -------------------------------------------------------------------------------- Eric Smith said: > Does anyone have any spare WD-1000, WD-1001, or related disk controllers, > or documentation on them? Yeah, I've got a couple of WD1002-05s, a couple of WD1002-HDOs from dead Kaypro 10s, a manual for the WD1002-05, and a manual for the WD1000. I can probably even find some of this stuff, as opposed to the Atari Portfolio stuff I promised someone a while ago. It'd cost you, though. Many years ago I sent you a couple of DECtapes with an OS/8 V3C distribution kit on them because you said you could read them with a DECtape to PC interface. It'd be nice to have those back. Or even better if you could get around to reading them and posting them somewhere for general download by the 12-bit community. -- Roger Ivie ivie(a)cc.usu.edu

23 years, 4 months

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20mA cable details

by pete＠dunnington.u-net.com

The time has come to hook my ASR33 to the PDP-8/E. The -8/E has an M8650 (KL8E) which I've been using with RS232. However, I have 40-way Berg connectors, and the proper AMP flat 8-way Mate-N-Lok connector shells for the 20mA loop, and the male and female pins, and I know which signals go on which pins. What I don't know is which end should be male and which female, nor how many cables there should be in the chain, because the cables were cut by the previous owner of the TTY, which has never seen a PDP-8 in its life before :-( There's a grey 6-core connected to the ASR33, and I *think* the male connector (the one with the flat tongue and 6 male pins) goes on this cable. Therefore the connector with the grooves, which the tongue slides into, and the female "pins", does on the cable from to the PDP-8/E's Berg connector. Yes? Next question is, roughly how long would the original 20mA cable on the TTY have been? My memory, reaching back two or more decades, says the cable on the KL8E should be about a couple of feet, and the rest is all one piece, attached to the TTY. Or would there be a third in between? I have enough connectors to do it either way. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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I'm back (again)!

by netsurfer_x1＠fastmailbox.net

Hello everybody! I'm back again! Let's hope I can stay on again without dropping off the face of the earth! For anybody who doesn't know me, I was subscribed to this list some time ago, but I lost my e-mail account. I'm a 21 year old classic computer collector (or "Digital Archaeologist" as I like to call myself) originally from Texas, but I'm in the Navy. I'm stationed at Keesler AFB, Biloxi (for AG "A" school). -- David Vohs netsurfer_x1(a)fastmailbox.net -- http://fastmail.fm - mmm... fastmail...

23 years, 4 months

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cctech digest, Vol 1 #254 - 3 msgs

by cctech-request＠classiccmp.org

Send cctech mailing list submissions to cctech(a)classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctech or, via email, send a message with subject or body 'help' to cctech-request(a)classiccmp.org You can reach the person managing the list at cctech-admin(a)classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctech digest..." Today's Topics: 1. Re: KIMplement for the C64 (Keven Miller) 2. Unibus SCSI question (Mike Ross) 3. Re: Unibus SCSI question (Dave McGuire) --__--__-- Message: 1 Date: Wed, 11 Dec 2002 14:38:43 -0700 From: kevenm(a)reeltapetransfer.com (Keven Miller) To: cctech(a)classiccmp.org Subject: Re: KIMplement for the C64 Reply-To: cctech(a)classiccmp.org > Ok, the actual title is "The Visible Computer: 6502". > This sounds like fun. Is there a place one can find a copy to download? Keven Miller kevenm(a)reeltapetransfer.com --__--__-- Message: 2 From: "Mike Ross" <mross666(a)hotmail.com> To: cctech(a)classiccmp.org Subject: Unibus SCSI question Date: Thu, 12 Dec 2002 16:02:15 +0000 Reply-To: cctech(a)classiccmp.org I've just aquired a tested working Emulex UC17 Unibus SCSI host interface >from a dealer for $50... don't know if I'm crazy paying so much for old Unibus or not! Question is, does anyone have any observations as to any special requirements such a card might have? Long time since I've played with any Emulex... any reason why it shouldn't work in really ancient hardware, such as my 11/20?... something appeals to me about putting a SCSI disk in such an ancient device! Mike http://www.corestore.org _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail --__--__-- Message: 3 Date: Thu, 12 Dec 2002 12:41:40 -0500 Subject: Re: Unibus SCSI question From: Dave McGuire <mcguire(a)neurotica.com> To: cctech(a)classiccmp.org Reply-To: cctech(a)classiccmp.org On Thursday, December 12, 2002, at 11:02 AM, Mike Ross wrote: > I've just aquired a tested working Emulex UC17 Unibus SCSI host > interface from a dealer for $50... don't know if I'm crazy paying so > much for old Unibus or not! > > Question is, does anyone have any observations as to any special > requirements such a card might have? Long time since I've played with > any Emulex... any reason why it shouldn't work in really ancient > hardware, such as my 11/20?... something appeals to me about putting a > SCSI disk in such an ancient device! Can't tell you whether or not it'll play nicely with an 11/20, but I'll sure tell you I'd pay three times that for Unibus SCSI in a heartbeat. -Dave -- Dave McGuire "Why would a brothel need St. Petersburg, FL a streaming media server?" -Kevin End of cctech Digest

23 years, 4 months

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Need many Commodore 64, VIC-20, Atari 800 video cables

by vcf＠siconic.com

I am in need of many Commodore 64, VIC-20 and Atari 800 video cables. If you have a mess you want to sell or trade, please contact me at <sellam(a)vintage.org>. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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Old TI analog sound chip; info?

by root＠parse.com

I tried a google search, but alas... :-) I'm looking for the documentation for the olde TI analog sound chip; this dates back to the late 70's early 80's if my memory serves me correctly. I don't even remember the part number. AFAIK, it had some kind of "I2L" (I squared el) technology or somesuch, and it was mostly analog, with some digital control (but nothing like a DSP or midi). Anyone recall this chip? Anyone have the datasheet for it online or willing to scan it in? Background: I remember playing with it a *long* time ago, and wanted to model it in software :-) Cheers, and thanks in advance, -RK -- Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers! Robert Krten, PARSE Software Devices +1 613 599 8316.

23 years, 4 months

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RS232 or Parallel port based keyboards and joysticks

by dwightk.elvey＠amd.com

Hi I usually use my laptop as a RS232 terminal. With a little software, you can even emulate a parallel keyboard >from the printer port. Joysticks are a completely different issue. Some Joysticks are digital while others are analog. Most that I know of don't connect to RS232. Dwight >From: "Ram & Suganthi M." <ram_suganthi(a)hotmail.com> > >Hi, > >Does anyone know where I can get a keyboard that either plugs into an RS232 >/ RS422 or Parallel Port? Ditto for a joystick. I want to connect a >keyboard to a transputer array for stand-alone operation and I already have >RS232 / Parallel ports on the array. > > >Thanks, > >Ram > >_________________________________________________________________ >The new MSN 8: advanced junk mail protection and 2 months FREE* >http://join.msn.com/?page=features/junkmail > >

23 years, 4 months

2
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Epson QX-10 CP/M disks and Operation Manual

by roger161uk＠yahoo.co.uk

Dear ClassicCmp Readers, I apologise for my joining the list and posting straight away, however, my reasons for doing so are that I have an original set of Epson QX-10 CP/M disks and a QX-10 Operation Manual that is looking for a new home. Unfortunately, I consigned a perfectly working (albeit "screen-burnt" with ash-filled keyboard) example of a QX-10 to the local dump a few years back. More recently, however, while clearing out my office I came across the virtually unused Operation Manual and CP/M disks. The disks are as follows (5 disks in total): Epson MultiFonts CP/M v2.2 & MultiFonts BASIC v1.3 Epson Diagnostic Program v0305 Epson CP/M PLUS Programmers Disk Epson CP/M PLUS Utilities Disk Epson CP/M PLUS GSX Disk If there is anybody who would like these disks and manual to complement a collection or museum of sorts, please could you contact me as soon as possible. Best regards Roger __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page >from News and Sport to Email and Music Charts http://uk.my.yahoo.com

23 years, 4 months

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BIG problem with my Jupiter Ace

by dwightk.elvey＠amd.com

Hi I have a monitor around someplace that if you are using a black and while signal, you can select any one of the primary colors for the background or hi-lited areas. I don't think he actually included a color >From: Witchy <witchy(a)binarydinosaurs.co.uk> > >> -----Original Message----- >> From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On >> Behalf Of Davison, Lee >> Sent: 06 December 2002 09:00 >> To: 'cctalk(a)classiccmp.org' >> Subject: RE: BIG problem with my Jupiter Ace >> >> There is just no pleasing some people. 8^)= >> >> http://zx.dyndns.org/trastero/cosas/droy/jupiter/ >> >> You want the .pdf near the end. > >Interesting how he got blue as a background when the real Ace used >black..... > >-- >adrian/witchy >www.binarydinosaurs.co.uk - the online computer museum >www.snakebiteandblack.co.uk - monthly gothic shenanigans > >

23 years, 4 months

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Can you fix a C-64, or know someone who can?

by tosteve＠yahoo.com

Hi, Someone contacted me wanting his Commodore 64 fixed. Can anyone recommend a person, place or thing? I don't know where he lives... Thanks! Steve. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

23 years, 4 months

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BIG problem with my Jupiter Ace

by Lee.Davison＠merlincommunications.com

Phil, > Also, the schematics are almost unreadable. > I got them from home-micros.freeserve.co.uk. > Anyone got a better copy? There is just no pleasing some people. 8^)= http://zx.dyndns.org/trastero/cosas/droy/jupiter/ You want the .pdf near the end. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 4 months

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System/23 Support Disks

by cb＠mythtech.net

Does anyone have a set of the IBM System/23 support disks that came with a System/23? I have a manual here (Volume 1, Learning to use System/23), and it makes reference to disks that came with the manual. The disks are: Customer Support Functions (VOL002) Learning Diskette (VOL003) There may be other disks that go with later manuals (there are 7 manuals total, and I know one of them deals with BASIC, so I would guess there are disks to go with that as well... I would check but I can't get to the other manuals right now). If anyone has these, would they be willing to make me copies if I supplied the blank 8" disks, postage, and a few bucks for the effort? The copies that go with my manuals appear to be MIA (I suspect they were used as blank disks many years ago). TIA -chris <http://www.mythtech.net>

23 years, 4 months

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Free MCA "Streaming Tape Adapter"? Board

by ram_suganthi＠hotmail.com

Hi, I got an unknown MCA card that has a sticky tape saying "Streaming Tape Adapter". Since I dont own a MCA system, its free for postage from NY / 11553. I thought it might have been an IMSB017 PS/2 MCA Transputer board >from the description.... Cheers, Ram _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years, 4 months

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BBC Acorn

by pete＠dunnington.u-net.com

On Dec 11, 23:50, Tony Duell wrote: > On Dec 11, 15:36, Joe wrote: > > > Today I went and picked up another part of my lot of computers that > > I bought last week. One of the things that I brought home today was a > > BBC Acorn computer. I'd heard of these but never seen one before. I was > > pleasantly surprised to find that this one was apparently built for use > > in the US and that it operates from 110 VAC 50 or 60 Hz and has a US > > style power plug. Does anyone know how many of these were imported into > > the US? I'm assuming that since it's set up for US power system that it > > will also operate on standard US TV and monitor frequencies. Does anyone > > THere is a US version of the BBC Micro. The differnces are the MOS ROM > (MOS = Machine Operating System, nothing to do with the technology of the > chip), which programs the 6845 for US frequencies and the colour encoder, > which generates NTSC rather than PAL video. Oh, the master Xtal must > change too, I guess... The crystal for the colour circuit does, but not the main crystal. > > know for sure. BTW the model number on this one is UNB 09. All the > > Acorn websites that I've found only list models A, B and B+ so I'm not > > sure what this is equivelent to. > > The A and the B are really the same machine. It's just that the A has > many chips missing (half the RAM, the ROM select register, the user VIA, > the RS423 buffers, etc). There are also spaces on the PCB for options > that are not standard in either the A or the B -- the disk controller, > Econet interface, Speech system, etc. > > The B+ is different. It has many more custom ULAs in it, and 64K RAM. > > >From the model number on your machine, I would assume it's a B, but I am > not sure. I don't need to add much to what Tony has said, except to confirm that what you have is indeed (from the model number) a USA Model B. Other (minor) differences are things like it accepts American spellings for BASIC keywords ("color" vs "colour"), and IIRC some of the screen modes have different numbers of lines. I guess I should go and look up the technical notes for you... -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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free: two RL01 drives, PDP-11/23, rack

by jrengdahl＠hotmail.com

Here is what is available: - two RL01 drives. I grabbed these to save them from the dumpster, but I have no way to try them out. - two PDP-11/03 (BA11) chassis. One is missing a piece of card guide, but it can be stuffed with 11/23 boards and it will run. If you want an 11/23 board set (KDF11-A, 256K RAM, serial/LTC) I'll throw those in too. The card cage is missing from the second BA11, but the power supply, front panel, and fans are there and functional. - a 39 inch high ugly gray 19" rack that will hold the above. - 14 RL01 disk packs. Some are labelled "RT-11 V5 + TSX", "RT-11 archive", and "Fortran". The RL01 stuff was all pulled out of an unheated U-store-it, and I don't know how long it had been there. I don't much about cleaning heads and disk packs, but I would recommend getting some expert advice and checking things carefully before spinning these up. The drives are missing the mounting hardware (slide-out rails, etc.), and the cable from the controller to the first drive. I have a cable to go from the first to the second drive, and the terminator. Free to whoever will come take it away. Located in Chardon, OH, about an hour east of Cleveland. It will *not* be trashed. It doesn't take up much room, so rather than doing a lot of work to pack it for shipment, I'd rather let it sit until someone can come pick it up. -- Jonathan Engdahl http://users.safeaccess.com/engdahl/pdp-11.htm "The things which are seen are temporary, but the things which are not seen are eternal." II Cor. 4:18

23 years, 4 months

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Fw: antique computers (Jan/2003) -Dynalogic

by hwolter＠sympatico.ca

just forwarding this from my local forsale newsgroup (Kitchener - Waterloo, Ontario). Please contact the party below; do not contact me. This is the first time I've heard of a 6800 based Dynalogic system - though I do have a dual floppy Hyperion h ----- Original Message ----- From: "Dennis Mullin" <dmullin(a)sentex.net> Newsgroups: kw.forsale Sent: Friday, December 13, 2002 7:32 PM Subject: Free: antique computers (Jan/2003) > 3 free computers available in January. > > Location: Kitchener > > They're currently being phasing out of active use > this month. When the last of the data has been > transfered, they're available for free to anyone > who wants one or they're off to the dump. > > The computers are 2 different models of Dynalogic > Business Machines. They were last produced in > early 1982 when Dynalogic switched to making > Hyperions (an early portable IBM PC compatible). > Dynalogic was an Ottawa based company > that started building computers in 1976. > > Specs: > > CPU: Motorola 6800 cpu, 1 meghertz speed, 8 bit > > Memory: 32K (2 machines), 64K (main machine) > > Operating system: Dynamo 3.1, Dynamo 4.0 > (mentioned because part of the operating system > is stored in an EPROM, and unless you've got a EPROM > programmer the operating system is not switchable). > Dynamo borrows features from Unix and CP/M. > > Storage: these machines have two 8" floppy drives > (2 machines: 1.2meg/disk DSDD; > 1 machine: 600k/disk SSDD) > Several hundred floppies are also available. > > Display: none included, designed for a standalone > terminal (Volker-Craig was a popular model). But can > provide a terminal emulator program. We're currently > using a pentium III class machine as a terminal > (yes, the irony is recognized...) > > I/O: serial ports > > Manuals: several pounds of those (most of which > have never been looked at). > > Software: an early basic compiler (much better > than Microsoft's efforts from that time period); > assembler (assuming the disks are still readable); > assorted basic programs (assuming the disks are > still readable), operating system disks. > > Size (approx): 20" deep, 16" wide, 10" high > > Weight (approx): 50 pounds/25 kg each > > Age: The main machine is from 1981, the > back up machines are probably 1980 or 1981. > > Enough parts for 2 working machines, 1 memory > board has gone bad in one machine, and some > of the floppy drives are in need of cleaning/lubrication. > > If interested or if you can suggest a local metal recycler > please contact: Dennis at dmullin(a)sentex.net > > > ================================================== > * For info on the kw.forsale charter and posting notes see * > * http://www.geocities.com/kwmoderator * > ================================================== >

23 years, 4 months

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DEC

by fernande＠internet1.net

Hi All, I've just been watching the TLC show about Hackers and Phone Freakers. I don't work in the computer industry, so I don't hear many pronunciations. Do you pronounce DEC as "Dee Eee Cee" or as "deck"? I've always called it "deck". Chad Fernandez Michigan, USA

23 years, 4 months

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AES 90 text processor

by mvirard＠attglobal.net

I am looking for an AES 90, preferably in working condition. Michel Virard, ing. Tel (514) 343 4571 Fax (514) 342 6248 mvirard(a)attglobal.net

23 years, 4 months

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I'm sorry and I want to make right. (ATR 8500)

by Technoid＠30below.com

If anyone has seen the man I was to send an ATR8000 (and associated gear) to, please let me know. I've carried this package of equipment long enough. It is complete in every way but I don't know where to send it to any longer. Please reply to me at Technoid(a)30below.com If you feel you have been defrauded, my address is Jeffrey S. Worley 1151 N.E. 86St. Miami, Fl. 33138 My Aim id is Tecworley My Yim id is Ubertechnoid Please help me complete this transaction. Yours truly, Jeffrey S. Worley

23 years, 4 months

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Collection list (just for phun)

by deinc1＠uswest.net

I would like to buy sbc11/21 computers.Falcon and Falcon+ any. deinc1(a)uswest.net

23 years, 4 months

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HP GPIO boards

by moore＠xygolf.com

I have an HP GPIO 98622A, Rev B (for 9000 series 300) and an HP 82306A (ISA GPIO for 82300 measurement coprocessor) need a good home. I'll post them on eBay in the next day or so if I don't hear from classiccmp subscribers. Some Info regarding the 98622 can be found at: http://www.tamsinc.com/support/gpio/theory.htm Info on the 82306 can be found at: http://ftp.agilent.com/pub/mpusup/pc/old/vp_gpio.html Let me know if you are interested, Mike

23 years, 4 months

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The Ne[w|utered] HP (was: RE: The effects of employment)

by Fred.van.Kempen＠microwalt.nl

Hi all, What stuns me about this what seems to be a national effort to wipe out existing knowledge and experience in the various U.S. companies trying to clean up their EOY numbers, is that they truly dont KNOW what they're doing. I did some asking around based on Megan's layoff, and the results are stunning. HP really, deeply and truly has no idea of what they're doing right now, let alone where they're going from here. Corporate HQ announces that the numbers don't look [as] good, so we have to cut on operational costs. And, HP being New (I'd call it 'brainless'- but then again, I'm not part of their staff ;-) they go for the first possible solution: fire people. What would that do in the long run? Right now, their plan is to dump Tru64/Alpha, and to integrate that with the HPSux/HPPA stuff. We'll see about that later (customers usually have their own ideas about that- they forced MS into keeping Win2000 around for much longer than they wanted to ...) but for now, exactly _HOW_ is HP going to handle their support obligations to their enterprise customers? I talked to the CTI of a _Major_ Dutch multinational this morning, which I know uses truckloads of Alpha systems, with both VMS and Tru64. When I told him about the layoffs in the UEG (Unix Engineering Group) task forces, he said: "Oh. So, assuming they clean out most of their brains, which is what this sounds like, HOW can they adhere to their claim to full support until X years after EOL?" Also- I can't speak for U.S. companies and their IT staffs, but in Europe, HP/UX doesn't have such a grand name in Enterprise Computing. It's mostly Sun Solaris on the Exxx boxes, and Tru64 UNIX on Alpha, as far as large UNIX systems are concerned. HOW is HP going to sell this to their customers, without those same customers running off to Sun or IBM, in search for some stability? Anyway. HP has lost its marbles. Cutting operational costs is a good thing, and usually serves a purpose. Ripping off your own balls (I apologize for any ladies reading this..) is not the best thing to do, and will probably leave you without kids later on. Kids that feed you when you can no longer do it yourself. Which might happen sooner than you think... --fred (yes, pissed off, how'd ya guess?)

23 years, 4 months

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(fwd) FS: Computer Stuff Collecting Dust - Upd

by ScottRowe＠mail.weber.edu

I noticed that you have alot of 486 SRAM Cache Chips, I have been looking for some to upgrade a computer of mine. I hope this is correct, are they for L2 Cache on the motherboard? They reason why I ask, is because that is what I need. Are they all the same configuration? ie.. (32K x8) for example. Or do you have (64K x8) or 128 versions also. Please email with Information. Thank you for your time Scott Rowe

23 years, 4 months

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Unibus SCSI question

by mross666＠hotmail.com

I've just aquired a tested working Emulex UC17 Unibus SCSI host interface >from a dealer for $50... don't know if I'm crazy paying so much for old Unibus or not! Question is, does anyone have any observations as to any special requirements such a card might have? Long time since I've played with any Emulex... any reason why it shouldn't work in really ancient hardware, such as my 11/20?... something appeals to me about putting a SCSI disk in such an ancient device! Mike http://www.corestore.org _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

23 years, 4 months

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One more screwup with the Ace...

by vassilip＠dsl.cis.upenn.edu

Removing ICs without a good soldering iron is an exercise in futility. About 15 years ago I was trying to remove some ROMs from a 8086 machine (a Japanese machine called Samurai with 2 8 inch floppies, running MSDOS 1.x - it was not a PC compatible, so it could not run anything other than its own version of MSDOS). The machine had a passive backplane with a series of posts on the back so that you could attach probes to the bus lines. I didn't have a proper technical manual, but I did have the schematics and I had taken a dump of the BIOS. The ROMs in question were on the video controller card and were used to store the character bitmaps. I wanted to replace the ROMs with static RAM so that I could change the character set of the machine. Unfortunately I made a complete mess of removing the two ROMs, but a visual examination of the board did not reveal any obvious damage. So I soldered a pair of sockets and mounted the original ROMs to see if the machine worked. Guess what, the fan worked, but I did not get any disk activity and the screen remained blank. Time for the funeral. So I carried that machine to the hardware lab of the University and asked the help of a friend. He was playing with a new (at the time) Dolche instrument that could attach to the bus of a microprocessor and display the code that was running (the actual assembly instructions). So he was quite excited at the prospect of using his new toy on a real machine. We plugged the DOLCHE to the Samurai backplane and we found that the processor was running, but stuck in a tight loop. So we looked at the ROM listings and found that the machine was waiting for the vertical blank signal. So we used a probe to connect the output of the video IC to the appropriate line on the backplane. As soon as the probe made contact we heard the floppy come to life. The screen was also working and the machine was trying to boot. We followed the VBLANK trace and sure enough it disappeared under the two character set ROMs. So I had the machine working again, and a war story to tell. Best Regards **vp

23 years, 4 months

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Tonight: "Hackers" TV show...

by pb0aia＠iae.nl

At 19:59 11-12-2002 -0500, you wrote: >> Tonight, Dec. 11th, at 10 PM Eastern time, the TLC cable channel is >>doing a show titled "Hackers". Supposedly a look at black- and white-hat >>hackers, and cyber crime. Hopefgully it'll be interesting... >Should I tell Uncle Tivo to record it??? I can make SVCDs of the thing, for >those who have DVD players that can play a slightly non-standard stream... ;-) >Laterz, >"Merch" I would very much like to see this show, but cannot receive the TLC channel on this side of the ocean. NTSC SVCDs are no problem for me! Maybe you can make the MPGs available somewehere? A while ago there was also mention of another show, about the history of the internet? Did anyone capture this show too? I would like to see that one as well, but it also was on a channel not available to me. Kees Stravers (The Netherlands)

23 years, 4 months

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Y2K/Y10K for V5.03 of RT-11

by jhfinepw4z＠compsys.to

I am not sure if there is any interest at all in fixing the Y2K bugs in V5.03 of RT-11 and making it Y2K compliant. Since V5.03 has been widely available for a number of years and is able to be legally run under the Supnik emulator for hobby users, I am curious to find out if spending the time to port code (that I did in 1997) from V5.04G of RT-11 to V5.03 of RT-11 is worth while insofar as the Y2K bug fix is concerned. In addition, and at the same time, it would be very effective to add extra code to make RT-11 Y10K compliant and handle years up to at least 9999 CE. Even if you are only going to use the final product, the number of individuals interested in playing a role is important to ascertain. Please express if you would like to at least receive the changes to V5.03 that would make the code Y2K/Y10K compliant. At the present time, I assume there is absolutely no commercial interest in a Y2K V5.03 of RT-11. Consequently, the target of this post is, by default, only the hobby community. The final result will also be licensed for just the hobby community, so it is hoped that ought to prevent any complications as to who will use the changes and whether there will be any attempt to restrict the use of such changes by the hobby community. If there is any commercial interest, please e-mail me off list to find out what might be available. If the interest is what I think it is, I will NOT be receiving any responses at all for commercial use! Sincerely yours, Jerome Fine -- To obtain the original e-mail address, please remove the ten characters which immediately follow the 'at'. If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

23 years, 4 months

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The Secret Weapons of Commodore 11th edition

by spectre＠stockholm.ptloma.edu

After far too long, the long-overdue 11th edition of the Secret Weapons of Commodore, cataloguing rare, unusual and unreleased Commodore hardware, has been released. http://www.floodgap.com/retrobits/ckb/secret/ Here are the highlights: New entries: the VIC-40 (thanks Mike Stein), the SX-500 (thanks Dale Luck), TOI and the Colour PET (now separate entries, thanks Mike Stein), the TT13 (thanks Riccardo Rubini), the Canadian Plus/4, the Swedish PET 3032 (thanks Peter Karlsson), the German C64 (thanks Markus Mehring), new pictures: complete views of Dave Haynie's NTSC 116 prototype (thanks Ray Castaldo), enhanced portrait and port views of the 128DLs (thanks Bo Zimmerman), views of the 1565 and mainboard (thanks Bo), the 3000H light rifle (thanks Lee Rayner), the Colour PET prototype (thanks Bo), the Gold VIC (maybe?) (thanks Bo), the Commodore 65 burn-in board and widget board (thanks Moise Sunda), the Commodore thermostat in the flesh! (thanks Joe Torre), comparison 116 keyboard shots (thanks Ray), better C65 mainboard/ports/portrait photographs (thanks Moise), C65 PSU images (thanks Moise *again*), higher resolution pictures of the CHESSmate, a proper DX-64 portrait, a better 3008 portrait (thanks Tiziano), a colour view of the HHC-4 (Bo) and the VIC-TV (Bo encore), a real SFS 481 (thanks Antonio Pagliaro), SX-100 faceplate (thanks Bo), views of the SX-500, the TT13 (thanks Riccardo); updates: Fred Bowen's big ideas for the 65, the 600s seem to be the same as the B500s, the HHC-4 might be more similar to the Panasonic HHC than previously thought, the Lorraine pictures are actually of an early developer prototype (thanks Dale Luck), CCR has a scale too (thanks Mike Shartiag), more SFX history (thanks Richard Atkinson), TOI is not the same as the Colour PET (thanks Mike Stein), the 6562/3 was likely not in TOI (thanks Mike Stein), the 65 widget and burn-in boards (thanks Moise), the 7601 is the CPU in the TVG series, plus some great notes on its internal architecture (thanks Lee Rayner), the SX was the first colour portable computer, additional history on the 116 and 364 (thanks Dave Haynie), the SX TV tuner package?, more Magic Voice history and architecture explanation, the 116 was designed by Commodore Japan (thanks Dave Haynie), custodial link repair, various smaller changes. In addition, on the main page, the modification date of all pages is now automatically tracked to make finding new changes and entries easier. Enjoy. http://www.floodgap.com/retrobits/ckb/secret/ -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- I shouldn't have to explain this to someone old enough to type. - S. Gardner

23 years, 4 months

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Acquired a PDP11/44, but missing M7095

by aek＠spies.com

> On the plus side a CMD CDU-720/TM SCSI controller was installed do you have any way to read the eprom from this? I have four of these boards, and they are all missing the eprom :<

23 years, 4 months

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One more screwup with the Ace...

by pete＠dunnington.u-net.com

On Dec 10, 20:03, Philip Pemberton wrote: > Hi all, > Well, it looks like I've finally destroyed the Ace. I've just spent the > past hour trying to desolder the dead RAMs and buffers from the Ace's main > PCB. Unfortunately it looks like the board was designed to self-destruct > when anyone tried to repair it. > The pads appear to have been designed to peel off on the application of > heat, they're less than 5 mils around the hole (what do you think that > means?) and they don't even seem to be through-hole plated. The tin plating > was applied straight on top of oxidised copper - I've had to retin some pads > and tracks courtesy of that major screwup. Machines like that were designed to keep the cost as low as possible, and repairability often wasn't a consideration. On things like that, I often don't even try to rescue any suspect ICs or even passives, just cut them off close to the PCB with a very fine pair of sidecutters, and then desolder the stub of pin. > Does anyone know how I could rescue this machine? It looks like the RAMs > are definetly fried, along with some of the logic as well. Font RAM and > Video RAM are still not being loaded on startup so the output of the video > generator is still 100% noise, however it *is* changing when the machine is > powered off and then back on again. I'm shotgunning all the RAMs (there's > only six of them) and the bus muxes. > Has anyone here either repaired one of these machines or got a spare Ace > to sell me? I've got a proper PSU now, with only one connector (the jack > plug the Ace uses), so I can say with near absolute certainty that the same > mistake will not occur again. First thing is to make sure anything you remove is replaced with a good quality socket, and if necessary that you can repair any damaged tracks with stripped wirewrap wire or similar. How adept are you with a soldering iron? I used to do this sort of thing for a living, and I'm not too far away if you want someone to take a look at it. Did you get the 2114s and Z80 I sent you? They should have arrived this morning. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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VAX wanted in Bristol, UK

by coredump＠gifford.co.uk

Just heard from a friend that he's interested in a VAX, and he's based near here in north Bristol. Anybody know of a suitable machine? -- John Honniball coredump(a)gifford.co.uk

23 years, 4 months

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The effects of employment

by healyzh＠aracnet.com

> > * I will no longer gripe about lack of funds in nearly every post. :-) > > Yes, now you will move to the group that gripes about lack of spare > time. :-) Allow me to welcome you to that group :^) Zane

23 years, 4 months

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Very Old Game

by vance＠neurotica.com

Does anyone have a copy of Executive Suite for PC's? It's the game where you are working your way up a corporate heirarchy through answering trivia questions. Peace... Sridhar

23 years, 4 months

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Selling it off. What would you keep ?

by lgwalker＠mts.net

I am at a point where I am thinking about divesting myself of the majority of my computer collection. Partly needed bucks driven, partly tiring of it all. A small museum is unlikely and I have other unfulfilled interests which I might focus on as an old fart. Likely on E-Pay because we're a notoriously cheap (or poor) lot. What would the list retain if they were cutting down or getting rid of the majority of thier collection and keeping enough to keep thier hand in. The game machines are easy and the first to go. I would think of retaining an IBM PC and another good DOS box. A CP/M machine. Maybe a Rainbow and let the Kaypros, Osborne, and others go. A hip old laptop, In my case a Grid 1520 and my Sharp handheld. Maybe one old early box like my Micom, H-89. or TRS m.II An Atari 8-bit and / or CoCo 3 An ST and Amiga 3K An IBM PS/2 likely the 8590, altho who would want 8580s, a more significant machine. Maybe one kept by default. And a newer DOS box and laptop. And then looking at this exclusive list it won't be easy. Lawrence lgwalker(a)mts.net bigwalk_ca(a)yahoo.com

23 years, 4 months

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Old macs available in New Jersey

by vcf＠siconic.com

There are some old Macs free for the taking in South Orange, New Jersey: (3) Macintosh LC (1) Macintosh IIci (1) Macintosh IIcx (1) Macintosh IIsi (1) Macintosh 8100/180 (needs P/S) Please contact Nilton at 973/275.1700 or <info(a)funmaps.com> if interested. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 4 months

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ADM-3A lower case

by c.morris＠townsqr.com

I' ve been intermittently looking (for many years) for a lowercase 2513 for my ADM-3A. I was really happy to see your post and find that others are interested in restoring this '70's nostalgia piece! I remember in 1977 how impressed I was with the blazing 1200 baud modem speeds, since the hardcopy Decwriters at the Univ. of Maryland were 300 baud. (Also I have a working rackmount PDP-8/I, with a "University Computing Company" front panel). I wore out my keyboard this weekend searching online for a 2513. Pure unobtanium. GI made them (I believe the p/n was 2513CGR-002 for the lowercase? -001 is in the socket so obviously the uppercase). Just as well I didn't find one, I never knew the address lines were flipped.... or am I misunderstanding and it is the direct plugin? thanks Charles

23 years, 4 months

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My first good find!!!

by philpem＠dsl.pipex.com

Hi all, I'm currently in a very good mood because I've found a Jupiter Ace in near-mint condition, complete with 16k RAMPack, intro tape and a copy of the book "Jupiter Ace FORTH Programming" by Steven Vickers. All this, including the polystyrene box for the rampack (and rampack instructions) cost me the rather feeble sum of two British pounds. Now, there is a catch. The machine didn't come with a power supply. So, can someone with an Ace, working PSU and a multimeter please tell me what the polarity and voltage of the PSU's output is? I'm hesitant to power up the Ace in case I end up fouling up the settings, with fairly predictable results. Thanks. -- Phil. philpem(a)dsl.pipex.com http://www.philpem.dsl.pipex.com/

23 years, 4 months

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Solaris 2.4

by fire＠dls.net

I have old Sparc Sun machine which I would like to run on Solaris 2.4, not newer. I have Solaris 8 from a few years ago when I paid Sun $75 for CDs but I do not want to run this version or the 2.5 I have from another machine. Does anyone have Solaris 2.4 CDs that they could sell or copy for me? Please note that I am not looking to violate copyright law but I do need to get 2.4 and not some later or earlier version of Solaris. Alternatively, does anyone know anyplace where I could obtain Solaris 2.4? (I have watched Ebay for 6 months without seeing a copy of Solaris 2.4 for sale) Bradley Slavik

23 years, 4 months

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YARC Systems transputer board

by sugandhi＠optonline.net

I have already responded to Bernd, but thought I should pass the info here. I have the whitepaper for this particular board, but nothing else. According to the paper, it is B004 compatible (most if not all PC boards are), so the software on the website *should* work. Here is the link to the whitepaper: http://www.classiccmp.org/transputer/documentation/yarc/yarc.doc Cheers, Ram PS: As a side note, what is a good way to scan documents in such a way as that the resulting PDF document can resize as large as possible without loosing image quality. Word documents can resize as large as possible without image loss. I hate putting word docs on the website.... -----Original Message----- From: Thilo Schmidt To: cctalk(a)classiccmp.org Sent: 12/5/02 6:31 PM Subject: Re: YARC Systems transputer board Hi Bernd, On 05-Dec-2002 Bernd Kopriva wrote: > Today i've added a YARC Systems transputer board to my little IBM-AT > coprocessor card collection :-) Ah, I saw this board on Ebay... :-) > Unfortunately, there was no documentation and software included ... > ... and YARC Systems seems to be out of business for at least 2 years ... This is a common problem with transputer based hardware... > Does anyone have documentation/software for that little beauty ? No, but most PC-Transputer-Boards where compatible to the Inmos B004 interface. On Ram's Transputer Homepage you should find a lot of software for this interface (http://www.classiccmp.org/transputer) I'm writing a Linux based development environment for transputers. Currently only the B004 driver and the assembler are operational. If you find any useful information regarding the interface of your board I would be very interested... bye Thilo

23 years, 4 months

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Need information on TRSDOS 1.3 internals

by kees.stravers＠iae.nl

At 12:12 7-12-2002 -0800, you wrote: >On Thu, 5 Dec 2002, Kees Stravers wrote: > >> Wouldn't it be easier to install a trs-80 emulator, mount the readdisk >> image in it, and print the files to a virtual printer port that you >> capture to a pc file? > >No, because then I'd have to type it all back in (or OCR it). It would be >much easier to transmit digital bits from one place to another. I'm sorry, but if you redirect the printer port to a file, with something like the dos vprint tsr, no typing would be needed because the print job would be on the disk already. Kees.

23 years, 4 months

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Micro Professor goodies

by hansp＠aconit.org

Browsing around today I came across the following EPROM & FORTH. Module for the Micro-Professor containing an Eprom and full manual. Specification:- FORTH-79, EPROM (8KB). Including line editor, ramdisk feature has up to 40k user RAM capbility. 4.99 ZILOG Z80 CHIPS. I/O memory expansion module for the Micro-Professor (see Q0831) Spec:- IOM-MPF-IP, Contains Z80-CTC (counter and timer chips) and Z80-PIO (parallel I/O chip) 2k eprom. 2k RAM. Uses parallel I/O control. Supplied with manual and ribbon cable. 9.99 AT Greenweld Electronics in the UK, web http://www.greenweld.co.uk -- hbp

23 years, 4 months

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My first good find!!!

by pete＠dunnington.u-net.com

On Dec 5, 10:26, Philip Pemberton wrote: > That's great. Unfortunately the CPU (a NEC D780C) died this morning while I > was re-tuning the modulator (modulator was set too close to Channel 5). > Sooo... Does anyone have a spare D780C or am I going to have to pull apart my > Toshiba HX-10 (MSX) and, er... "borrow" the CPU? > Alternatively a ZiLOG Z80 would be fine. The original CPU has a 1984 date > code, but it's in a socket so I guess it's been replaced already. A > replacement from 1982-1986 would be nice (82xx to 86xx date code), but not > essential. I have a spare D780C with a 1983 date code. Mail me off-list if you want it. I think the original may have been socketed. It was common to socket thingss like MPUs, ROMs, etc, in those days, but the 1984 date code sounds late -- I think the Ace came out in 1982. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

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Rl drives

by bqt＠update.uu.se

> > > I am _darn_ sure the seek function on an RK11 doesn't check sector > > > headers (I would have to actually dig out the prints to be sure). I know > > > I've used it to move heads around on the alignment pack, which doesn't > > > have convnetionally recorded headers. Quite apart from the fact that an > > > RK05/RK11 can seek on a blank disk so as to be able to format it (a blank > > > RK05 pack really is blank). > > > > We must have been talking past each other here. I didn't mean that the > > controller/drive made a check on the disk that it was on the right > > track. The drive *knows* it's on the right track, without checking. Like > > Sorry, no it doesn't... You're right. Too long since I worked on this, I apologize. Unless you specify a read-all or write-all, the RK05 does check at read or write. I should have kept my mouth shut. :-) Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

23 years, 4 months

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