test-drb

test-drb@ccmp.vtda.org

101090 discussions

by julesrichardsonuk＠yahoo.co.uk

Anyone happen to have a source to a photo of the NeXT CDROM drive? Google's being spectacularly unhelpful (one of those times where it'd be really handy to be able to do a case-sensitive search :) I'm interested to know whether the case styling was done in-house (and so is in keeping with the rest of the product line) or whether it was just an off-the-shelf unit. cheers Jules

19 years, 4 months

cctech Digest, Vol 42, Issue 53

by lrl＠crisis.com

HP 98625A Print set and parts list is on Bitsavers. ----- Original Message ----- From: <cctech-request at classiccmp.org> To: <cctech at classiccmp.org> Sent: Wednesday, February 21, 2007 10:02 AM Subject: cctech Digest, Vol 42, Issue 53 > Send cctech mailing list submissions to > cctech at 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 at classiccmp.org > > You can reach the person managing the list at > cctech-owner at classiccmp.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cctech digest..." > > > Today's Topics: > > 1. Pair of 19" rack mount Emulex HD's available.... > (Curt - Atari Museum) > 2. VCF East 4.0, another update... (Evan Koblentz) > 3. Re: New DEC museum entry :D (Jules Richardson) > 4. Re: HPIB [was Re: Kennedy to PC interface...] (der Mouse) > 5. Looking For DEC TTY Connectors (O. Sharp) > 6. Re: NeXT external CDROM drive (Gavin Thomas Nicol) > 7. Re: Pair of 19" rack mount Emulex HD's available.... > (William Donzelli) > 8. Re: Turbodos on a Horizon 8/16 system (Jim Battle) > 9. Re: HPIB [was Re: Kennedy to PC interface...] (Chuck Guzis) > 10. Re: New DEC museum entry :D (Bob Bradlee) > 11. Re: NeXT external CDROM drive (r.stricklin) > 12. Re: Turbodos on a Horizon 8/16 system (Chuck Guzis) > 13. Re: Looking For DEC TTY Connectors (Brent Hilpert) > 14. Re: database of PC software release dates? (Jim Leonard) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 20 Feb 2007 20:42:16 -0500 > From: Curt - Atari Museum <curt at atarimuseum.com> > Subject: Pair of 19" rack mount Emulex HD's available.... > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Message-ID: <45DBA378.6000807 at atarimuseum.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > I'm cleaning out one of my storage units, I was given a pair of 19" Rack > mountable Emulex HD's (SMD) when I purchased some Vax equipment. If > anyone in the area (Carmel, NY 10512) wants them, they are yours for > free, just come and pick them up. > > > > Curt > > > > > > ------------------------------ > > Message: 2 > Date: Tue, 20 Feb 2007 21:11:57 -0500 > From: "Evan Koblentz" <evan at snarc.net> > Subject: VCF East 4.0, another update... > To: "'General Discussion: On-Topic and Off-Topic Posts'" > <cctalk at classiccmp.org> > Message-ID: <001d01c7555d$aa2aa730$6401a8c0 at DESKTOP> > Content-Type: text/plain; charset="us-ascii" > > Hi all, > > I'm getting an early start on signing up VCF East exhibitors / vendors / > speakers. If you're interested and not already on our local (MARCH) list, > then please contact me off-list. > > - Evan > > ----------------------------- > > Prior update: In addition to Chuck Peddle, our panel (in the morning of June > 9) will feature Bil Herd, Bob Russell, and Dave Haynie .... Along with > several of the early models (and even some ultra-rare prototypes) on display > .... In case the panelists have a sudden urge to demo anything. ALSO: there > WILL be a second day! The official dates are now June 9-10. > > Location: InfoAge Science Center (www.infoage.org), Wall, N.J. .... > Sponsored once again by MARCH (www.midatlanticretro.org). > > > > ------------------------------ > > Message: 3 > Date: Tue, 20 Feb 2007 21:25:08 -0600 > From: Jules Richardson <julesrichardsonuk at yahoo.co.uk> > Subject: Re: New DEC museum entry :D > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Message-ID: <45DBBB94.1040205 at yahoo.co.uk> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > Tony Duell wrote: > > My first thougth is that it is a mains filter capacitor that's breaking > > down. Some of them are designed to be 'self healing' in that if the > > dielectric breaks down, the current will then vapourise the metal in that > > area, causing the capacitor to carry on working. Of course that was > > before the days of those over-sensitive RCDs, etc. > > This is where we find there's a temperature-controlled fan or somesuch in the > machine which kicks in after a few minutes and for some reason causes the PSU > to throw a wobbly... > > Agreed - weird problem. > > Out of interest, if you power the machine up and then immediately power it > down normally (before it's had the chance to do so itself :) does it still > upset the house mains? Just asking as maybe that's something you haven't tried > yet... > > > > > ------------------------------ > > Message: 4 > Date: Tue, 20 Feb 2007 22:15:39 -0500 (EST) > From: der Mouse <mouse at Rodents.Montreal.QC.CA> > Subject: Re: HPIB [was Re: Kennedy to PC interface...] > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <200702210331.WAA14994 at Sparkle.Rodents.Montreal.QC.CA> > Content-Type: text/plain; charset="iso-8859-1" > > >> Is there anyone here who knows enough about typical HPIB hardware of > >> the hp300 era to be able to take a list of chip markings and tell me > >> which one is probably the relevant driver? > > What I would do is trace back from the data pins of the HPIB > > connector (IIRC that's pins 1-4 and 13-16 of the 24 pin Microribbon > > connector). On most modern-ish machines (anything since the 9830 > > :-)), there is only one chip connected to those lines, and that's the > > HPIN data buffer. > > Then I guess this isn't modern-ish. :-) The suspect hardware is a > 98625A; what tracing I've managed to do seems to lead back to four > 16-pin DIPs labeled with an HP code (1820-2058, to be specific). > > > One common type is the 75160, which comes in a 20 pin DIL package, or > > I guess some kind of SMD thing. > > This hardware is entirely through-hole DIP. Not a suface-mount part in > sight. Fairly low-density through-hole DIP, too - on a board measuring > 17x14 cm, there are only 31 chips: one of 48 pins, three of 20 pins, > fourteen of 16 pins, and and thirteen of 14 pins (well, thirteen 14-pin > DIP packages; I think two are resistor packs rather than logic), plus > two ten-pin SIP resistor packs, a two-switch DIP switch bank, a > five-switch DIP switch bank, a small pot, four discrete resistors, > seventeen discrete capacitors, and a crystal oscillator. Oh, and > card-edge fingers on one side and a back panel with an HPIB connector > on the other. > > /~\ The ASCII der Mouse > \ / Ribbon Campaign > X Against HTML mouse at rodents.montreal.qc.ca > / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B > > > ------------------------------ > > Message: 5 > Date: Tue, 20 Feb 2007 20:17:11 -0800 (PST) > From: "O. Sharp" <ohh at drizzle.com> > Subject: Looking For DEC TTY Connectors > To: cctech at classiccmp.org > Message-ID: > <Pine.LNX.4.44.0702202002400.4205-100000 at cascadia.drizzle.com> > Content-Type: TEXT/PLAIN; charset=US-ASCII > > > Hey, all: > > I'm looking for two pair of the sort-of-Molex-like connectors DEC used for > connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing > designates them as "Mate-n-Lock" connectors, T04915; my web search for > them turned up a lot of connectors, but not this type. Here's a photo of > a set, if it helps: > > http://flyingmoose.org/tty_conn.jpg > > Are these still manufactured? Does anyone have two sets in spares, or > otherwise know where I can find a couple? > > Thanks in advance for any help! > > -O.- > > > > ------------------------------ > > Message: 6 > Date: Tue, 20 Feb 2007 23:55:13 -0500 > From: Gavin Thomas Nicol <gtn at mind-to-mind.com> > Subject: Re: NeXT external CDROM drive > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > Message-ID: <A58D76CB-D823-4D72-B536-BA31865D6DAA at mind-to-mind.com> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > > > On Feb 20, 2007, at 9:53 AM, Jules Richardson wrote: > > > I'm interested to know whether the case styling was done in-house > > (and so is in keeping with the rest of the product line) or whether > > it was just an off-the-shelf unit. > > It's essentially a badge-engineered Apple external CD. I have a few > of both... mostly because the Apple parts are 100% the same so I use > them to repair the NeXT drives. I can dig up the appropriate model > numbers if you want. > > > > ------------------------------ > > Message: 7 > Date: Wed, 21 Feb 2007 00:07:30 -0500 > From: "William Donzelli" <wdonzelli at gmail.com> > Subject: Re: Pair of 19" rack mount Emulex HD's available.... > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: > <e1d20d630702202107w1cf12a39jfe3834af92963ae6 at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > I'm cleaning out one of my storage units, I was given a pair of 19" Rack > > mountable Emulex HD's (SMD) when I purchased some Vax equipment. If > > anyone in the area (Carmel, NY 10512) wants them, they are yours for > > free, just come and pick them up. > > I need these like a hole in the head - but if available... > > -- > Will > > > ------------------------------ > > Message: 8 > Date: Tue, 20 Feb 2007 23:23:59 -0600 > From: Jim Battle <frustum at pacbell.net> > Subject: Re: Turbodos on a Horizon 8/16 system > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Message-ID: <45DBD76F.4040409 at pacbell.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Continuing my story of trying to recover the contents of the hard drive > in my Horizon 8/16 system, I took Dave Dunfield's advice and wrote a > small program to read each sector from the hard drive and dump it. 30 > MB of disk data at 9600 baud, printed as ASCII hex. It took a while. > > The mystery remains -- what is it? > > There is no plain-text to be found anywhere ... not even accidental > sequences. I thought that perhaps it is a lot of binary data. Some of > it must be code. Searching the hex for "CD0500" (which is "CALL 0005", > the CP/M call vector) has no hits. > > I know the disk is good because I can write a sector and read back what > I wrote. The non-destructive drive tests (basically read each sector > and see if any errors crop up) pass. > > Even stripping the msb produces blocks of data that look like the > following text. "." represents unprintable characters. > > ........."E..(P @.....'N.:tiS'N. > 9rdI.&M.6mZ4hQ"D..#G..:tiS'O.<xp > aB... A....,Y3gO.>}ztiS&M.7n]:ti > R$I.%J.)R%K.,Y2eJ.)R$H.#F..4hP @ > .....1bD..$I.&L.0aC...9reJ.(Q#F. > .7n\8p`@.....-[7o_>|ysfM.7n\8qcG > ..<xqbE..(P!B...&M.4hQ#G..?~}{w > o^={vmZ5jT(Q"D..%K./^<xpaB...%J. > (P!C...;vlX0aB...+W.]:thP!C...5k > W/^<xqcF..5kW.];vmZ5jU+V,Y3fM.5k > W/_>|ysfM.6lX0aC...<yreJ.)S&M.4i > S&M.4hP!C...7n];vlY3fL.2dI.$I.$I > .%J.+V,X1cF..1bE..*T(P @........ > ..9sgO.={wn];wo^=zthP @.......>} > {vmZ4iS&L.2eJ.*U*T(P A....9rdH.! > B...%J.)S'O.?~}ztiS'O.>|xqbE..(P > > This is a typical block, one of almost 60K. > > You prefer hex? OK, here is another block: > > ; TRACK #031A, SECTOR #000C > 010202060405000102F4E8D0A1428408102143870E1C3972E5CB962D5BB66DDB > B76EDDBA75EAD5AA55AA54A952A54B972F5FBE7CF9F2E4C8902040800103060D > 1B376FDFBF7FFEFCF8F1E2C58A142953A64C983162C488102143860C183162C4 > 88102143870F1E3D7BF6ECD9B265CB972E5CB972E5CB962D5BB76EDCB972E5CB > 972E5DBA74E8D1A2448912254B972E5CB972E4C8902143870E1C3972E5CB962D > 5AB56BD6AC58B061C2850B172E5CB871E2C58B172F5FBE7CF9F2E4C89123468C > 193366CD9A356AD5AB57AF5FBE7DFAF5EAD4A953A64C983163C78E1D3A75EAD4 > A953A74F9E3D7AF4E9D2A54B972E5CB972E5CB972F5FBF7EFDFBF7EEDCB973E6 > CD9A356AD4A851A2458B172E5CB972E5CA942851A2448913274E9D3A74E9D3A7 > 4E9D3B76EDDAB56BD7AE5CB973E6CD9B366CD8B163C78E1D3A74E9D3A74E9C38 > 70E1C3860D1B376EDDBA74E8D0A143870F1F3F7EFDFAF4E9D3A74F9F3E7DFBF6 > ECD8B163C68D1A356AD5AB57AE5CB871E2C58A142953A64C993264C89123478F > 1E3C79F3E7CF9E3D7BF7EFDFBE7DFBF6ECD9B265CA942851A3478F1E3D7BF6ED > DBB66DDAB469D2A4499224489122448913264D9B376FDEBD7AF4E8D0A0408001 > 020408102040800103060C183162C4881122458A152A55AA54A850A142840912 > 2448902143860D1B376EDCB973E6CD9B376FDFBF7EFDFAF5EAD4A850A0418205 > > I suppose it might be 8086 binary, as turbodos supported both Z80 and > 8086 CPUs in the system, even mixed, but then again, my machine only has > Z80s, no 8086s. > > Unless a genius comes along and recognizes this, I'm going to wipe the > drive, install TurboDOS, and not look back. > > Finally, I have to give kudos to Dave Dunfield for his great NST > utilities and his floppy disk archive. It allowed me to mint some new > NSDOS and CP/M images for the machine after my only CP/M boot disk got > trashed. > > http://www.classiccmp.org/dunfield/img/ > > > > ------------------------------ > > Message: 9 > Date: Tue, 20 Feb 2007 21:47:56 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: HPIB [was Re: Kennedy to PC interface...] > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <45DB6C8C.26193.21EE3100 at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 21 Feb 2007 at 2:25, Tony Duell wrote: > > > There aren't that many HPIB buffer chips in common use. There's the TI > > set (75160/75161/75162), the HP custom one, the various Motorola ones (I > > forget the numbers), the Intel one (8293), and that's about it. Oh, > > there's the kludge way, using open-collector TTL as drivers (or before > > that, discrete transistors), and 7414's as receivers. > > If you're communicating to a single device, it's possible to use a PC > paralell port (particularly a bidirectional one) to do the job. A > very long time ago, I needed to draw a color pie chart. I had a copy > of Supercalc and a friend loaned me an HP 5-pen (IIRC) plotter that > he'd picked up at the going-out-of-business sale of the Control Data > retail stores. I had a PC XT at the time. The problem was that the > plotter was GPIB only. > > I hacked the parallel port on the IBM MDA to do bidirectional I/O > (easy--just a cut and a jumper). I wrote a TSR that hooked the > parallel port BIOS interrupt and translated the codes intended for a > parallel-interface plotter to GPIB strings. I told Supercalc that it > was driving the parallel-port version of the plotter and bingo--I had > my charts. > > You can probably still find the code in one of the SIMTEL archives, > but I can't remember what I called it--something like LPTHPIB, IIRC. > > Cheers, > Chuck > > > > ------------------------------ > > Message: 10 > Date: Wed, 21 Feb 2007 01:11:02 -0500 > From: "Bob Bradlee" <caveguy at sbcglobal.net> > Subject: Re: New DEC museum entry :D > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <200702210611.l1L6B9w2044544 at keith.ezwind.net> > Content-Type: text/plain; charset="us-ascii" > > On Tue, 20 Feb 2007 22:47:05 +0000, Adrian Graham wrote: > > >On 20/2/07 21:48, "Tony Duell" <ard at p850ug1.demon.co.uk> wrote: > > >> THat's an odd fault. It's repeatable, yes? In other words you turn it on, > >> it runs for 5 minutes, then trips the mains. You cna then power it down, > >> power it up again and it'll run for another 5 minutes... > > >Yep. Every time. I haven't timed it exactly, but it will run for minutes > >then give up; last night I had enough time to start playing with DCL and > >leave it for a bit while I dug a manual out. Then everything went black :) > > > > I had a problem like that, where I had a rack that was drawing close to the limit on a 20 amp breaker, > when I added the last system to the stack the problem began, after a few minutes of runtime the breaker > would heat up and pop, I swaped the breaker out with a different one of the same size and it that held just > fine. The circuit I moved the week breaker to, normally only runs 7 or 8 amps and it never failed with the > light load. > > I had a second breaker problem. After an extended power failure, I found that the circuit would not carry > both the normal startup load with the additional of 2 large UPS's at full charge rate on near dead batteries > during startup. Just about the time everything booted and came back up, the breaker would have heated > up and poped. I pulled the external battery packs off, and let them charge the internal batteries first and > then added one external pack at a time, untill I could get a larger circuit run to the rack. > > While you are at it, you might want to take a clamp on amp meter and balance the load between phases. > You may be pulling more power on one phase. If you pull the voltage down on one side or phase with an > unballanced load, the current load will go up and breakers will be more likely to overheat and pop. > > I was in a 3 phase box just yesterday that was running 17a, 23a, and 37a on each of the 3 phases. > The electric company bills based on the max load on any single phase, by moving about 10a of load from > phase 3 to phase 1, we dropped the billable load the electric company sees >from 37a to 27a, close to a > third. That should look good on next months electric bill. > > Just a thought, back under my rock .... > The other Bob > > > > > > > ------------------------------ > > Message: 11 > Date: Tue, 20 Feb 2007 22:28:37 -0800 > From: "r.stricklin" <bear at typewritten.org> > Subject: Re: NeXT external CDROM drive > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > Message-ID: <2877027B-F289-42E9-A222-3E9BD7889ACC at typewritten.org> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > > > On Feb 20, 2007, at 6:53 AM, Jules Richardson wrote: > > > I'm interested to know whether the case styling was done in-house > > (and so is in keeping with the rest of the product line) or whether > > it was just an off-the-shelf unit. > > It's physically identical to the caddy-load 2x Sony OEM unit that > made the rounds as (for example) the Apple CD300 and DEC RRD42, > except for the black casing, black plastics, and NeXT logo pasted up > front. > > ok > bear > > > ------------------------------ > > Message: 12 > Date: Tue, 20 Feb 2007 22:32:48 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Turbodos on a Horizon 8/16 system > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <45DB7710.24809.22174537 at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 20 Feb 2007 at 23:23, Jim Battle wrote: > > > 010202060405000102F4E8D0A1428408102143870E1C3972E5CB962D5BB66DDB > > B76EDDBA75EAD5AA55AA54A952A54B972F5FBE7CF9F2E4C8902040800103060D > > 1B376FDFBF7FFEFCF8F1E2C58A142953A64C983162C488102143860C183162C4 > > 88102143870F1E3D7BF6ECD9B265CB972E5CB972E5CB962D5BB76EDCB972E5CB > > 972E5DBA74E8D1A2448912254B972E5CB972E4C8902143870E1C3972E5CB962D > > 5AB56BD6AC58B061C2850B172E5CB871E2C58B172F5FBE7CF9F2E4C89123468C > > 193366CD9A356AD5AB57AF5FBE7DFAF5EAD4A953A64C983163C78E1D3A75EAD4 > > A953A74F9E3D7AF4E9D2A54B972E5CB972E5CB972F5FBF7EFDFBF7EEDCB973E6 > > CD9A356AD4A851A2458B172E5CB972E5CA942851A2448913274E9D3A74E9D3A7 > ... > > My guess is that this might well be a test pattern. One obvious clue > is that there are too many '1' bits for code--either 8086 or > 8080/Z80.Even complementing the data doesn't produce anything more > useful. > > Cheers, > Chuck > > > > ------------------------------ > > Message: 13 > Date: Tue, 20 Feb 2007 22:40:54 -0800 > From: Brent Hilpert <hilpert at cs.ubc.ca> > Subject: Re: Looking For DEC TTY Connectors > To: General at priv-edmwaa06.telusplanet.net, > "Discussion at priv-edmwaa06.telusplanet.net":On-Topic and Off-Topic > Posts <cctalk at classiccmp.org> > Message-ID: <45DBE967.6E5C5DF4 at cs.ubc.ca> > Content-Type: text/plain; charset=us-ascii > > "O. Sharp" wrote: > > I'm looking for two pair of the sort-of-Molex-like connectors DEC used for > > connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing > > designates them as "Mate-n-Lock" connectors, T04915; my web search for > > them turned up a lot of connectors, but not this type. Here's a photo of > > a set, if it helps: > > > > http://flyingmoose.org/tty_conn.jpg > > > > Are these still manufactured? Does anyone have two sets in spares, or > > otherwise know where I can find a couple? > > I have half of what you are looking for: about 2-dozen cables, each cable > being 4-conductor with a connector on one end. The connectors are those with > the big flat tab, shown on the left in your photo. The pins in use are the > same as in your photo (2,3,5 & 7, depending on which end you count from), so > presumably these were used for the same purpose. > > It's just surplus cable to me, so if it's of any help without the other > connector, let me know. Location is Vancouver, Canada. > > > ------------------------------ > > Message: 14 > Date: Wed, 21 Feb 2007 01:10:27 -0600 > From: Jim Leonard <trixter at oldskool.org> > Subject: Re: database of PC software release dates? > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Message-ID: <45DBF063.3000702 at oldskool.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Richard wrote: > > Is there a database somewhere that attempts to catalog the > > introduction date of software for the IBM PC and compatibles? > > www.mobygames.com, but that's only for entertainment software. > -- > Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ > Help our electronic games project: http://www.mobygames.com/ > Or check out some trippy MindCandy at http://www.mindcandydvd.com/ > A child borne of the home computer wars: http://trixter.wordpress.com/ > > > End of cctech Digest, Vol 42, Issue 53 > ************************************** >

19 years, 4 months

Datapoint 2200 drawing package on bitsavers

by aek＠bitsavers.org

http://bitsavers.org/pdf/datapoint/2200 I'm interested in finding other Datapoint technical documents for the archive.

19 years, 4 months

ferric chloride...a little off topic

by useddec＠gmail.com

Does anyone know of a good supplier (in the US) of ferric chloride for etching? I'm looking for one or five gallon containers. Thanks, Paul Anderson

19 years, 4 months

Turbodos on a Horizon 8/16 system

by frustum＠pacbell.net

Jim Battle wrote: > Lee Davison wrote: >>> Unless a genius comes along and recognizes this, I'm going to wipe >>> the drive, install TurboDOS, and not look back. >> >> Is there any place potential geniuses can get all this image data? >> >> Lee. > > Lee, > > The 30 MB drive is partitioned into two logical drives under turbodos. I > gave up about 1/4 the way through the B partition. A looks > indistinguishable from this, other than being 4x larger since it is the > full partition. > Dang, I can't believe I fell for that again. Sorry jay for sending a large attachment. Lee, I'll try again, this time to you.

19 years, 4 months

Boot Disk/Software Archives

by marvin＠west.net

Has anyone started to rebuild the boot disk/software archives similar to what Don Maslin was doing? I see bits and pieces spread around the web but nothing all inclusive such as what Don had. It would be great to see it all in one place and mirrored in the same way as bitsavers. I did find a list of the disks that Don had online (I think at Gaby). To the best of my knowledge, that was the only online compilation of what was contained in his collection.

19 years, 4 months

OT Re: Is this true?? (TI & watches)

by marvin＠west.net

> From: "Chuck Guzis" <cclist at sydex.com> > I can remember seeing at least one project for a crystal-controlled > timing source using tubes (I think it used push-pull 6F6's in the > output stage) to run an ordinary synchronous-motor wall clock. This > would probably be during the 1940s or 50s. > > Does anyone remember that the oldest of said wall clocks required the > owner to start the motor manually by spinning a little knurled shaft > located on the back? I seem to recall a rumor where the power companies were offering to replace at no charge those clocks that needed to be mamually started (before my time.) The reason had something to do with using power that didn't register on the power meter. Anyone here know if this is fact or fiction?

19 years, 4 months

Turbodos on a Horizon 8/16 system

by lee＠geekdot.com

> Unless a genius comes along and recognizes this, I'm going to wipe > the drive, install TurboDOS, and not look back. Is there any place potential geniuses can get all this image data? Lee.

19 years, 4 months

Looking For DEC TTY Connectors

by ohh＠drizzle.com

Hey, all: I'm looking for two pair of the sort-of-Molex-like connectors DEC used for connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing designates them as "Mate-n-Lock" connectors, T04915; my web search for them turned up a lot of connectors, but not this type. Here's a photo of a set, if it helps: http://flyingmoose.org/tty_conn.jpg Are these still manufactured? Does anyone have two sets in spares, or otherwise know where I can find a couple? Thanks in advance for any help! -O.-

19 years, 4 months

Is this true?? (TI & watches)

by aliensrcooluk＠yahoo.co.uk

--- Chuck Guzis <cclist at sydex.com> wrote: **>> snip <<** > A good mechanical watch will just keep going and > going with an > occasional clean and lube. > > I read somewhere that watches themselves are on th e > decline. > Apparently many folks simply use their mobile phon e > as a time source. You took the words right out of my mouth. Since I got my 1st mobile around 2001 I haven't used watches at all. Before 2001 I never really used watches that much anyway. I never needed them at school and didn't go out much during my teen years. Infact, apart from one my grandparents had (with day of the month on it), I never used watches until I left secondary school (summer 1996) and had to go out looking for work etc. (I didn't want to do further education - sixth form, college and Uni etc.) > > Didn't Mozart grumble about being paid with pocket > watches instead of > money? > > Cheers, > Chuck > But surely the watches would have been worth more than money, to the right person of course? Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 4 months

VCF East 4.0, another update...

by evan＠snarc.net

Hi all, I'm getting an early start on signing up VCF East exhibitors / vendors / speakers. If you're interested and not already on our local (MARCH) list, then please contact me off-list. - Evan ----------------------------- Prior update: In addition to Chuck Peddle, our panel (in the morning of June 9) will feature Bil Herd, Bob Russell, and Dave Haynie .... Along with several of the early models (and even some ultra-rare prototypes) on display .... In case the panelists have a sudden urge to demo anything. ALSO: there WILL be a second day! The official dates are now June 9-10. Location: InfoAge Science Center (www.infoage.org), Wall, N.J. .... Sponsored once again by MARCH (www.midatlanticretro.org).

19 years, 4 months

Wyse terminals using same hardware.

by t_wtom＠qualcomm.com

Previously on this channel...... >>>>> On Sun, 18 Feb 2007, David Griffith wrote: > On Sun, 18 Feb 2007, Golan Klinger wrote: > > > David Griffith wrote: > > > > > I have a fondness for the Wyse 85 and I was wondering if anyone here has > > > one in decent condition to get rid of. > > > > I share your fondness for that particular terminal. I'm not sure what > > it is about the Wyse 85 but I just love them. My last one died a few > > years ago and my Wyse 60 just isn't up to snuff. Considering how many > > were made/sold, it's odd that they're so hard to find. > > I find the Wyse 50 on Ebay all the time, frequently newly refurbished. > Do you still have the dead 85? Since the 50 is externally identical to > the 85, do you think it would be possible to turn a 50 into an 85 with > some rom swapping? Whoops. They're not identical. I've unearthed a Wyse 99gt with bad screenburn and nasty case discoloration. Seems close enough for my purposes. <<<<< Yes, Wyse made some terminals that WERE the same, just different PROMS. The Wyse-75 and Wyse-50 were the SAME hardware. You can convert a Wyse 50 (weird escape sequences) to a Wyse-75 (nice VT-100 type escape sequences) with a bit of work. I've done it very successfully (it was a few years ago, in a previous life). Steps: 1) Have a Wyse 75 nearby that can be "borrowed". You will return it in its original condition. 2) Have the Wyse 50 (soon to be a Wyse 75) around as well. 3) Get a couple of EPROMS that are the same as the ones inside the Wyse 50/75. At the moment I don't remember, but a pair of 2764's sounds familiar. 4) Open up the Wy-75's logic board and get access to the nice socketed prom chips. 5) Mark the chips and their sockets to make sure you don't fudge them in the wrong place. 6) Make copies of these chips in your EPROMS. Be aware that if you don't have high enough speed chips, the unit you are "modding" might NOT work in 132 column mode. 7) Place these chips in the Wy-50's board where they came from the WY-75. 8) (Here it gets a bit tricky!) Remove the EEPROM (it is a 16 pin chip and socketed) from the Wy-75 and put it in the Wy-50's socket. Save the Wy-50's EEPROM for a step further down. 9) Power up the Wy-50 (now a Wy-75) and get into the setup menu. Note that the keytops are in a few different places, but since you have a Wy-75, just make legends for that copy the keycaps. 10) With power ON (careful now) gently remove the EEPROM chip inserted in step 8. 11) With the power STILL on insert (careful now) the EEPROM chip from the original WY-50 back into the socket. 12) Since you are in the setup menu, do a "save". This saves the Wy-75 stuff into the EEPROM and makes sure that bits are set to allow the Wy-75 to work. If you DON'T do this, the terminal WON'T power up in a useful state AT ALL! 13) Put the original Wy-75 parts back into the "donor" wy-75 and re-assemble it. They won't notice ANY difference as you haven't changed anything! 14) Re-assemble the former Wy-50 (now a nice functional Wy-75) and add some labels to the keyboard for the keys that are different from the Wy-75 (there are a few). 15) Be happy. You just upgraded your Wy-50 to a Wy-75. Enjoy the nice VT-100 style escape codes. Note that some of the "F keys" (F1-F6 as I remember) have specific functions and are NOT programmable. So, there you go. Yes it is the same hardware. The Wyse 75 firmware looks in the EEPROM to see that you started out that way, and wedges if not. This is the reason for the dance shown above. I tried it without the EEPROM dance and it DID NOT work. Then I figured it out. I didn't have an EEPROM (2401??) programmer, so I couldn't clone that part, but since the above works (be very very careful), it shouldn't be a problem. As the saying goes: "West and Welaxation at Wast ha ha ha ha..." (insert Elmer Fudd voice here). -- Tom Watson Generic Signature t_wtom at qualcomm.com (I'm at work now)

19 years, 4 months

Anyone in NW London?...

by julesrichardsonuk＠yahoo.co.uk

... who might be able to pick up and hang on to some NeXT stuff for five weeks or so? We've got an offer of some stuff but it has to be out of the owner's house by next Monday, and I'm not back in the UK until the end of March. I'm hoping Witchy can collect [1] as he thinks he might be off to London later this week sometime, but as this is all a little rushed I thought it might be wise to line up a backup if possible :-) [1] Witchy, did you get my last email with contact details for the guy? My message prior to that one bounced saying that the destination computer wasn't found (which is the second time in the last couple of weeks that's happened) so I guess you're having mail server troubles... cheers Jules

19 years, 4 months

Is this true?? (TI & watches)

by aliensrcooluk＠yahoo.co.uk

--- der Mouse <mouse at rodents.montreal.qc.ca> wrote: > >> Apparently many folks simply use their mobile > phone as a time > >> source. > > Since I got my 1st mobile around 2001 I haven't > used watches at all. > > Heh. > > My watch died recently, and since then I have been > using my phone as my > mobile time source. I want the watch back. (Too > bad it's broken; I > need to find another.) > > Why? > > The phone is significantly harder to get to (have to > extract it from a > pocket, versus just turning my wrist), and the pho ne > is significantly > harder to read under most circumstances. > My first mobile yes, but not my current one which has a much better LCD display and backlighting. Oh yes, speaking of backlighting.... it can also double as a torch when in the dark :) It drains the battery faster sure, but it usually only needs charging once every 2 days (battery should last for 1000 charges or so). > There's also an element of "use the right tool for > the job", but that's > much weaker. > Indeed. If I needed a stopwatch then I would need a digital watch, or a erm... stopwatch! > /~\ The ASCII der Mouse > \ / Ribbon Campaign > X Against HTML mouse at rodents.montreal.qc. ca > / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E > E8 B3 27 4B > Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 4 months

Cipher F880 Manual (copy) Available

by craig＠tonkaland.com

I need a copy of thismanual - where can I go to see it? Thanks! Craig Olson 952-935-8112

19 years, 4 months

CPUs in What Computer

by marvin＠west.net

Something I just ran across was a website with a list of CPUs and the machines that used them starting with the Intel 4004 and continuing up through the 8086/8088. http://www.cpushack.net/antique-computers.html As they themselves say, the list is far from complete, but it is pretty interesting.

19 years, 4 months

ISO Wright-Line tape racks

by aek＠bitsavers.org

Anyone know of any Wright-Line freestanding tape racks available in the Bay Area? (for 2400ft tapes, 30tape, 5 rack) The Computer History Museum needs a few. Would think there should still be some kicking around somewhere near here.

19 years, 4 months

pdp-11 stuff in UK

by jwest＠ezwind.net

It's already spoken for :) I have some more PDP stuff that folks emailed me looking for homes for, I'll try to post those to the list tonight. Jay

19 years, 4 months

Fw: pdp_11 'stuff' (in the UK)

by jwest＠classiccmp.org

Someone wrote.... > I have some PDP11 in various states to 'dispose of' - can you help me find > some appropriate new home(s) for them, please? They are currently 'stored' > (ie sitting on a pallet in a dusty room) in warehouse premises - in Wigan, > UK - which are due to be vacated later this year (but that will be after i > have left the company, hence the need to 'clear up' before then before > they're scrapped). > > There is one 11/83, two 11/73's and most of a couple of others whose types > i 'm unsure of. > > I can arrange to ship these, preferably to one area in mainland UK but > perhaps to several ... > > If you can help me to get in touch with anyone UK-based who can 'take them > off my hands' i would be most grateful ... Please contact me off-list if interested. Jay

19 years, 4 months

Fw: PDP-11 docs

by jwest＠classiccmp.org

If anyone wants these, please contact original poster directly. I don't hear much about IAS. Jay ----- Original Message ----- From: "Al Fontes" <alfred at fontes.org> To: <jwest at classiccmp.org> Sent: Saturday, February 17, 2007 1:11 AM Subject: PDP-11 docs > I have the following, which are yours if you'll cover the shipping from > San Francisco: > RT-11 System User's Guide, 1980 > IAS/RSX-11 MACRO-11 Reference Manual, 1977 > PDP-11 Processor Handbook, 1981 > > The front cover's starting to tear off the handbook, which is a paperback, > but otherwise it's in decent shape The other two manuals are loose-leaf > pages that go into a 3-ring binder. They're in good shape as well. > > Please let me know if you want them. I've come very close to recycling > them a few times. > > --Al

19 years, 4 months

6' DEC Cabinet available zip 10512

by paisley＠erols.com

Hi Curt. Do you know if this is the H960 rack? I am looking for one that has the "legs" on the front. Like the one in this photo: http://www.groenenberg.net/pic/PDP/eb04.jpg Do you have any photos of the cabinet? Thanks. Todd Paisley

19 years, 4 months

Wyse 85

by dgriffi＠cs.csubak.edu

I have a fondness for the Wyse 85 and I was wondering if anyone here has one in decent condition to get rid of. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

19 years, 4 months

Is this true?? (TI & watches

by dkelvey＠hotmail.com

>From: "Glen Slick" <glen.slick at gmail.com> > >On 2/19/07, aliensrcooluk at yahoo.co.uk <aliensrcooluk at yahoo.co.uk> wrote: >> >>No idea whether this is true or not, as it >>was in part of a spam email, but because of >>the TI link, I thought it might be of some >>interest here (and perhaps someone can confirm >>whether it's true or not?): >> >> >>In 1960 an engineer working for a watch >>company in Switzerland discovered that a small >>crystal would vibrate at a constant rate. > >I imagine the history of crystal oscillators goes back a lot longer >than the 1960s. > >A quick web search found this article with much earlier dates: > >http://www.ieee-uffc.org/fc_history/bottom.html Hi The use of quartz crystals in watches did take some invention. Most crystals used for oscillators would have either had to be made very large to get to lower frequencies or run at high frequencies. Running at high frequencies would run the battery down quite soon. It was the concept of the cantilever mounted crystal that allowed a piece of quartz to both oscillate at a low frequency and be small as well. They also found a cut with the right temp coef to work well attached to a humans arm. It was these things that made the quartz watch work. The Swiss were into making chronometers. This also required that they maintain exact time, over a wide range of temperatures. With out additional correction, these quartz watches can't meet such requirements. Of course, the Swiss didn't think that most would keep their watch with them most of the time and would still be quite accurate. Such is life. When looking at the inventions of the twentieth century, I have considered the quartz oscillator to be the most important. No good replacement has been found. Tubes to transistors to FET's and the quartz crystal is still essential. Dwight _________________________________________________________________ Don?t miss your chance to WIN 10 hours of private jet travel from Microsoft? Office Live http://clk.atdmt.com/MRT/go/mcrssaub0540002499mrt/direct/01/

19 years, 4 months

Kennedy to PC interface...

by aek＠bitsavers.org

> Surely the easiest way would be to find a 9-Track with SCSI interface > and hook it directly to the PC. It is. I have read thousand of tapes with a Powerbook G3 and various SCSI interfaced drives (Kennedy, HP, M4 Data and Qualstar). Surprisingly, for 1600/6250 the Qualstar 34xx is the best at recovering data. The Kennedy 96xx was working great on 800bpi tapes 'til the takeup tension arm started failing self-test.

19 years, 4 months

Fwd: [alt.folklore.computers] Diablo 630 printer and accessories

by legalize＠xmission.com

This message has been forwarded from Usenet. To reply to the original author, use the email address from the forwarded message. Date: Mon, 19 Feb 2007 17:02:56 -0500 Groups: alt.folklore.computers From: "Vic45" <vhnews at bellsouth.net> Org: BellSouth Internet Group Subject: Diablo 630 printer and accessories Id: <f8pCh.8731$e8.4025 at bignews1.bellsouth.net> ======== I have a Diablo 630 with print ribbons, one metal print wheel and several plastic print wheels. This unit was functioning perfectly when I took it out of service 20+ years ago. How might I find a good home for it? I am in the Atlanta area. Vic

19 years, 4 months

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