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

Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs

by pete＠dunnington.u-net.com

On Mar 21, 15:24, Jim Strickland wrote: > Couldn't they be used to divide a termination domain? IE the multiport > transceiver sits between two branches of a thin-net network, protecting against > loss of termination on either branch? Obviously they'd still be in the same > collision domain... I don't really see how the fanout units on offer (or my unsuccessful back-to-back device) could do that -- the termination isn't in the transceiver or fanout unit, it's a resistor on the end of the cable. Anyway, it would still only be one termination domain. Or maybe I've misunderstood what you mean? If you mean my back-to-back transceiver idea, yes, if it had worked, you could use it to split a termination domain into two, just like a two-port repeater, or a very simple bridge (except a bridge usually separates collision domains too). -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs

by whdawson＠mlynk.com

Thanks for the responses. It looks like all are spoken for. If I end up with any left, I'll repost them. Bill whdawson(a)mlynk.com

26 years, 3 months

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Are you sure the 6550 is dead? (was: Mos Technology RAM wanted)

by ethan_dicks＠yahoo.com

--- Pete Turnbull <pete(a)dunnington.u-net.com> wrote: > On Mar 21, 21:48, Tony Duell wrote: > > > else, long before I posted my request. I could fix about anything > else on > > > the PET, but I draw the line at grinding the top off to poke at > individual > > > flip-flops in an IC :-) FWIW, the first job I had in > > > > Really, kids these days..... > > Well, I once ripped the metal lids off a few ceramic DRAMs to use them as > optical image sensors (ISTR an article in BYTE, I think it was, years ago > about that) Yes! I just repacked my lidless 4116 chips. I only ever got as far as cementing slide-mount covers on one and sticking it in an Apple II at the top of RAM and demonstrating the effect by clearing video RAM then lifting the lid. Many bits sparkled in when light shone on the chip. Now that I have a digital camera, I'll have to take pictures (as soon as I buy/find/make a Mac crossover cable to connect a QuickTake 150 to my Mac). -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

26 years, 3 months

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Spartan emulator

by ethan_dicks＠yahoo.com

--- Mark Gregory <mgregory(a)vantageresearch.com> wrote: > I don't know how they got there, but I remember seeing a large pile of > these Spartans at Active Surplus, on Queen Street in Toronto (well-known to > any Hogtown hackers) in late '88 or '89. Given Active's inventory policy > ("If you don't buy it, we'll leave it lying around") they may still be > there. If anyone researches this, please let me know. > From: Cameron Kaiser <ckaiser(a)oa.ptloma.edu> > To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> > Date: Tuesday, March 21, 2000 4:48 PM > Subject: Re: Apple Network Servers > > > > I'm also particulary impressed with the Spartan page on your site (for > > those in the dark, this was a hardware add-on for the Commodore 64 that > > turned it into an Apple II): I was a beta tester for the Spartan in 1985. Somewhere I've still got my contract with them (all I could find on a casual search of my bookshelves is a copy of the docs). I have the case for one in the basement; I forget what happened to the mainboard. I think it died, or else I wouldn't have stripped the supply for another project. During my testing, I remember running Enchanter on the Apple CPU and Sorcerer on the C-64 CPU, typing a command on one, switching to the other and typing a command there to multi-task the games (since the disks were so slow). Interesting concept, but about 50% the cost of a real Apple. If they ever sold any, it would have been to some serious die-hards. Mostly back then, Apple guys and Commodore guys didn't mix much. Kinda like Atari guys and everybody else. :-) -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

26 years, 3 months

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3com 3server3

by mmcfadden＠cmh.edu

I just came across a wierd computer box. It is labeled 3com 3server3 and has a dc-300 cartridge tape drive it it. I haven't opened the box yet. I looked on the 3com website and it says that it is a PC server from 1984. Does anyone know anything more? TIA Mike michaelmcfadden(a)sprintmail.com

26 years, 3 months

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Are you sure the 6550 is dead? (was: Mos Technology RAM wanted)

by pete＠dunnington.u-net.com

On Mar 21, 16:45, allisonp(a)world.std.com wrote: > > > I would have thought a 2101 was far too small. These are 4kbit chips. > > Are these single voltage or multiple? 4k? 22pin? sounds like the > semi-4600 and NEC D410 parts, a 4k pseudostatic 200ns cycle and access > under 120ns. I've got a rat load of upd410s. The moto part number > doesn't compute though. uPD410 is 18-pin 0.3" width, 4k x 1, with one ~CE line (the MOS Technology MCS6550 has 2 ~CS and 2 CS lines and it's 0.4" wide). I can't find any data on a 4600 but I assume it's similar. If you're asking about the 6550 I'm looking for, yes it is single 5V rail, but it's 1k x 4 and it's not Motorola. In fact, I'm fairly sure no-one but MOS Technology made them. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Televideo TS-802H available

by donm＠cts.com

A friend of mine has a Televideo TS-802H that he is looking to part with. I was familiar with the machine a few years back, and I'm sure that it is still in good shape. If you are interested, contact Dick Hubbard at 619-229-0955. He will be pleased to hear from anyone who might like the machine. - don

26 years, 3 months

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Spartan emulator

by mgregory＠vantageresearch.com

I don't know how they got there, but I remember seeing a large pile of these Spartans at Active Surplus, on Queen Street in Toronto (well-known to any Hogtown hackers) in late '88 or '89. Given Active's inventory policy ("If you don't buy it, we'll leave it lying around") they may still be there. Cheers, Mark. -----Original Message----- From: Cameron Kaiser <ckaiser(a)oa.ptloma.edu> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, March 21, 2000 4:48 PM Subject: Re: Apple Network Servers > >I'm also particulary impressed with the Spartan page on your site (for those >in the dark, this was a hardware add-on for the Commodore 64 that turned it >into an Apple II): I thought it was just a hardware emulator, but its feature >set was really greater than the sum of its parts. Fascinating! > >-- >----------------------------- personal page: http://www.armory.com/~spectre/ -- > Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu >-- SOFTWARE -- formal evening attire for female computer analysts. ------------ >

26 years, 3 months

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Toggling in PDP-11 Bootstraps...

by pete＠dunnington.u-net.com

On Mar 21, 14:33, Aaron Christopher Finney wrote: > Thanks Pete, I'll give this a try when I get home tonight. And thanks for > putting the comments in as well! It's nice to see what's going on, that's > kind of what I'm after by playing around with this stuff this way. I've stuffed a few other things on my web site at http://www.dunnington.u-net.com/public/ODT/ A few of the files are bootstraps taken from handbooks or manuals, but several of them are little bits of nonsense I wrote when I first encountered an 11/23, with no OS. Remember I was a beginner and try not to laugh out loud :-) If you think the syntax is a little non-standard, it's because I had to write my own cross-assembler and I hadn't used MACRO-11 much then. No, don't ask me for the source. It was so awful I threw it away :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Apple Network Servers

by owad＠applefritter.com

>::What "is" a network server 500, and what is the upgrade (very unlikely to >::be worth $200)? > >A Network Server 500 is one of Apple's two ill-fated Unix server models. Not to mention thge _very_ ill-fated Apple Networ Server 300, which never made it past the prototype stage. My web site, Applefritter, is hosted on one of these machines. "The ANS 300 had the same architecture as the 500 & 700, but was intended to be an easily rack-mounted unit intended for Internet/FTP/Mail/Web serving, departmental and small database servers, etc, and consequently less expansion. It has two removable drive bays and one fixed drive (behind the LCD). Much of the serviceability & security was abandoned for the sake of size. For instance, there is no obvious way to secure the drive bays, or the motherboard tray from being removed. The power supply is fixed and would be slow to field repair. The fixed hard drive mounted behind the LCD is very hard to reach, etc. The key lock on the front controls only the "on, lock, service" options, unlike the multiple key lock controlling those functions plus doors and security on the full size 500/700 units. These issues eventually ceased to be important, however, as the ANS 300 never shipped. "Code named Deep Dish, the ANS 300 is essentially an Apple Network Server without the large drive array. As a consequence, the computer is only four rack-units high. The logic board is in the bottom of the unit on a slide-out tray. There are two standard ANS removable trays on the right side of the unit's front. The Deep Dish also has one fixed internal drive, and the floppy drive is fixed, as well. Apple also had plans to produce an external drive array for the machine, reason for the ultrawide SCSI port above the PCI slots." If anybody wants more information, see <http://www.applefritter.com/prototypes/deepdish/>. Tom ------------------------------Applefritter------------------------------ Apple Prototypes, Clones, & Hacks - The obscure, unusual, & exceptional. ---------------------<http://www.applefritter.com/>---------------------

26 years, 3 months

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Toggling in PDP-11 Bootstraps...

by pete＠dunnington.u-net.com

On Mar 21, 11:09, Aaron Christopher Finney wrote: > > Does anyone have any practical advice concerning this, something that > might save me a little time/frustration? At least to start with, I'd ignore the MSCP stuff and play with the 11/73 and RXV21. It's easier to see what's going on, since you can single-step and look at the RXV21 registers; MSCP is a relatively complex protocol which uses command buffers in memory, and the registers won't tell you much. > I'd like to be able to set up the simplest system possible and try to > toggle in a bootstrap. I've played with the ones on metalab (RX01, MSCP) > without much real success so far. Trying to boot from the RX01's using the > bootstrap code on metalab results in the drive access light coming on, but > nothing else happening. Sending a break stops at 1044 every time, the > contents of that register is 1776. Trying to boot from the Dilog scsi > device #0 (should be DU0, right?) just hangs (again using the MSCP > bootstrap on metalab). The MSCP bootstrap is well-commented, so I can see > what's going on there...a little hint or push may be all I need to be able > to modify it to work for me. The RX01 bootstrap is not commented at all, > unfortunately. An RXV21 (RX02) bootstrap is different from an RXV11 (RX01). Below is one for an RXV21. I also have quite a few little routines to do things like echo to the console, test/size RAM, dump memory, find CSRs, do serial port loopback tests, etc; all small enough to enter using ODT. Mail me if you want any... 1 000000 ; RXV21_boot From Microcomputer Interfaces Handbook 1983-84, page 484 2 000000 ; Use ODT to enter, then set RS=340, R6=1000, R7=1000, then P 3 000000 ; 4 000000 ORG O1000 5 001000 ; 6 001000 012700 MOV #O100240,R0 6 001002 100240 7 001004 012701 MOV #O177170,R1 ; RXCSR 7 001006 177170 8 001010 005002 CLR R2 9 001012 012705 MOV #O200,R5 9 001014 000200 10 001016 012704 MOV #O401,R4 ; track 1, sector 1 10 001020 000401 11 001022 012703 MOV #O177172,R3 ; RXDBR 11 001024 177172 12 001026 030011 BIT R0,(R1) 13 001030 001776 BEQ $-4 ; wait for TransferReq or Done 14 001032 100437 BMI O1132 ; branch if ERR set 15 001034 012711 MOV #O407,(R1) ; set DDens, Read, Go 15 001036 000407 16 001040 030011 BIT R0,(R1) ; wait for TR 17 001042 001776 BEQ $-4 18 001044 100432 BMI O1132 ; branch if ERR set 19 001046 110413 MOVB R4,(R3) ; give sector number 20 001050 000304 SWAB R4 ; swap track and sector 21 001052 030011 BIT R0,(R1) ; wait for TR 22 001054 001776 BEQ $-4 23 001056 110413 MOVB R4,(R3) ; give track number 24 001060 000304 SWAB R4 ; swap sector and track 25 001062 030011 BIT R0,(R1) ; wait for TR 26 001064 001776 BEQ $-4 27 001066 100421 BMI O1132 28 001070 012711 MOV #O403,(R1) ; EmptyBuffer (DDens) command 28 001072 000403 29 001074 030011 BIT R0,(R1) ; wait for TR 30 001076 001776 BEQ $-4 31 001100 010414 MOV R4,(R4) ; save sector number 32 001102 010513 MOV R5,(R3) ; set word count=256 33 001104 030011 BIT R0,(R1) 34 001106 001776 BEQ $-4 ; wait for done 35 001110 100410 BMI O1132 36 001112 010213 MOV R2,(R3) ; set address=0 37 001114 060502 ADD R5,R2 ; increment... 38 001116 060502 ADD R5,R2 ; ...address 39 001120 122424 CMPB (R4)+,(R4)+ ; bump R4 by 2 and clear all flags 40 001122 120427 CMPB R4,#3 ; sectors 1 and 3 get done 40 001124 000003 41 001126 003735 BLE O1022 ; loop if not finished 42 001130 012700 MOV #0,R0 42 001132 000000 43 001134 005007 CLR PC ; go to address zero 44 001136 120427 CMPB R4,#0 ; dummy operation, pipelined but not executed 44 001140 000000 -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs

by pete＠dunnington.u-net.com

On Mar 21, 12:09, Mike Ford wrote: > >Perhaps someone can tell me, on list, why no one on this list has any > >interest in these. Maybe everyone is saving their money for iOpeners d8^) > > I don't have a clue what they are used for. I don't know either, but I might hazard a guess that they originated in the days of thick ethernet, when taps were expensive, and had to be fitted at specific intervals on the thick coax. Then perhaps it might make sense to connect two devices to one tap/transceiver. I'm just guessing, though. Now if they'd been the other "gender", so to speak -- ie, if they could be used to connect one device to two transceivers -- it would be tantamount to a bridge. Then I could probably use one as a media converter by adding both a 10base2 and a 10baseT transceiver, and link the 10base2 part of my home network to the 10baseT part without leaving a power-hungry repeater running all the time. I don't think they'll do that though. I once tried it with two transceivers back to back, and just got millions of collisions. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Are you sure the 6550 is dead? (was: Mos Technology RAM wanted)

by edick＠idcomm.com

OOPS! I misread the previous post . . . it does say 1k x 4 bits. The only 22-pin 4K-bit sram I remember from those days is one from EMM-SEMI, but the number escapes me. Nevertheless, the only SRAM I remember in a 22-pin package other than the EMM-SEMI parts, was the 256x4 2101. There were plenty of non-multiplexed DRAMs in that package, but few SRAMs. If you have 22-pin parts and the memory diagnostic is failing on a 4K-byte boundary, it's likely the parts are something wierd. The conclusion that Philip has reached here is quite plausible. I'd explore his proposed solution before going any further. MOS Technology did build a few oddball parts, but I don't remember seeing any of their parts as being THAT odd. My MOS data books don't include any memory parts, though they did build some ROMs at that time. Dick -----Original Message----- From: Philip.Belben(a)powertech.co.uk <Philip.Belben(a)powertech.co.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, March 21, 2000 10:51 AM Subject: Are you sure the 6550 is dead? (was: Mos Technology RAM wanted) > >> I think the basic number you're looking for is "2101" from the same 1K >> series as the famous "2102" which is a 16-pin 1kx1 with separate in and out. >> The 2101's I have are not fast enough to meet the 200ns spec. However, not >> much of anything that was readily available at the time the PET model 2001 >> came out was that fast. Either it was quite a bit faster, e.g. 2147, 2115, >> etc, or it was slower, e.g. 2114, 21L02, TMS4044 etc, which were typically >> 450 ns at that point in time. Those 450 ns parts worked handsomely with the >> 1 MHz 6502. Perhaps you'd be able to use a 2101. > >I would have thought a 2101 was far too small. These are 4kbit chips. > >I agree 200ns probably isn't essential - my PET of that date uses 450ns 2114s. >On the 1MHz 6502 you have 500ns between the two clock edges that govern RAM >timing - one guaranteeing a valid address, the second latching in the data. > >(FWIW there were FOUR motherboard designs for the early PETs, based on all >permutations of 2114 or 6550 RAM and 2316 or 6540 ROM. Mine is late for an old >style PET, and has 2114 and 6540) > >>>> > One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an >>>> > equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. >>>> >>>> I'll have to check the RAMs in the spare PET that I >>>> keep in the garage. Can't remember whether they're SRAMs >>>> or DRAMs in the bigger PETs. >>> >>>Only the oldest 2001-x PETs use those SRAMs. I guess it's time to build >>>that upgrade board (a PAL, a pair of EPROMS, and some 6264s, a 62256, or >>>some cast-off PC cache). > >That's right. When they revised the ROM code, they revised the motherboard so >that all ROMs were 2332s (and the sockets would take 2732s) and all RAM was >dynamic. > >The thing that bothers me is that it says 3071 bytes free. This is EXACTLY the >number of bytes free you get on a 4K PET. > >My advice - Identify the suspect pair of chips (remember these are 4-bit wide >parts) - I have the circuit diagrams if you want - and swap them with the >corresponding pair for the top 1k of RAM. You should then get the message "6143 >BYTES FREE" when you power up. (Or try swapping them with the video RAM - >you'll soon see if the chip is dead!) > >I suspect, however, you will still get 3071 BYTES FREE. > >Let me explain. On these early PETS the top four address lines come from the >processor and go straight into a 74154 decoder, AND NOWHERE ELSE. This outputs >sixteen block select lines - one for each 4k of memory. Your PET is failing >memory test at exactly the point where it passes into the second 4k block from >the first. > >In short, I think a failure at the block boundary is too much of a coincidence. >I'd trace out what this line is doing from the 74154 (there is only one, and >it's 24 pin, so you can't miss it!) to the RAM. Failing this, I'd suspect >something else in the chip select logic. (It could, of course be a failure that >affects a whole chip, but I'd try the other things after you've swapped RAM >chips if the BYTES FREE doesn't change) > >As I said, I can lend you my copy of the circuit diagrams if you haven't already >got one. > >Philip. > > > > >********************************************************************** >This email and any files transmitted with it are confidential and >intended solely for the use of the individual or entity to whom they >are addressed. If you have received this email in error please notify >the system manager. > >This footnote also confirms that this email message has been swept >for the presence of computer viruses. > >Power Technology Centre, Ratcliffe-on-Soar, >Nottingham, NG11 0EE, UK >Tel: +44 (0)115 936 2000 >http://www.powertech.co.uk >**********************************************************************

26 years, 3 months

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Are you sure the 6550 is dead? (was: Mos Technology RAM wanted)

by pete＠dunnington.u-net.com

On Mar 21, 17:30, Philip.Belben(a)powertech.co.uk wrote: > I would have thought a 2101 was far too small. These are 4kbit chips. Correct :-) > I agree 200ns probably isn't essential - my PET of that date uses 450ns 2114s. Yes, I'm sure that's true. The 2114 PETs are rarer, but I can't see any reason to use 200ns devices, except that's what MOS Technology (who were largely owned by Commodore) were making. > (FWIW there were FOUR motherboard designs for the early PETs, based on all > permutations of 2114 or 6550 RAM and 2316 or 6540 ROM. I've got the schematics for all 4 types. They're almost identical except for slight differences in the memory decoding. > The thing that bothers me is that it says 3071 bytes free. This is EXACTLY the > number of bytes free you get on a 4K PET. > > My advice - Identify the suspect pair of chips (remember these are 4-bit wide > parts) Oh, I did that to check that it was definitely the RAM and not anything else, long before I posted my request. I could fix about anything else on the PET, but I draw the line at grinding the top off to poke at individual flip-flops in an IC :-) FWIW, the first job I had in computers/IT/whateveryoucallit was looking after (and repairing at component level) PETs and other micros, in 1981. The PET determines the RAM size by reading and writing a byte in every block and assumes it has found the top of RAM when it gets an error. It was just coincidence that one of the 5th pair was the one to go. So I now have a 7K PET, because I put the faulty IC in the top pair. It reports 6143 bytes free. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Are you sure the 6550 is dead? (was: Mos Technology RAM wanted)

by Philip.Belben＠powertech.co.uk

> I think the basic number you're looking for is "2101" from the same 1K > series as the famous "2102" which is a 16-pin 1kx1 with separate in and out. > The 2101's I have are not fast enough to meet the 200ns spec. However, not > much of anything that was readily available at the time the PET model 2001 > came out was that fast. Either it was quite a bit faster, e.g. 2147, 2115, > etc, or it was slower, e.g. 2114, 21L02, TMS4044 etc, which were typically > 450 ns at that point in time. Those 450 ns parts worked handsomely with the > 1 MHz 6502. Perhaps you'd be able to use a 2101. I would have thought a 2101 was far too small. These are 4kbit chips. I agree 200ns probably isn't essential - my PET of that date uses 450ns 2114s. On the 1MHz 6502 you have 500ns between the two clock edges that govern RAM timing - one guaranteeing a valid address, the second latching in the data. (FWIW there were FOUR motherboard designs for the early PETs, based on all permutations of 2114 or 6550 RAM and 2316 or 6540 ROM. Mine is late for an old style PET, and has 2114 and 6540) >>> > One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an >>> > equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. >>> >>> I'll have to check the RAMs in the spare PET that I >>> keep in the garage. Can't remember whether they're SRAMs >>> or DRAMs in the bigger PETs. >> >>Only the oldest 2001-x PETs use those SRAMs. I guess it's time to build >>that upgrade board (a PAL, a pair of EPROMS, and some 6264s, a 62256, or >>some cast-off PC cache). That's right. When they revised the ROM code, they revised the motherboard so that all ROMs were 2332s (and the sockets would take 2732s) and all RAM was dynamic. The thing that bothers me is that it says 3071 bytes free. This is EXACTLY the number of bytes free you get on a 4K PET. My advice - Identify the suspect pair of chips (remember these are 4-bit wide parts) - I have the circuit diagrams if you want - and swap them with the corresponding pair for the top 1k of RAM. You should then get the message "6143 BYTES FREE" when you power up. (Or try swapping them with the video RAM - you'll soon see if the chip is dead!) I suspect, however, you will still get 3071 BYTES FREE. Let me explain. On these early PETS the top four address lines come from the processor and go straight into a 74154 decoder, AND NOWHERE ELSE. This outputs sixteen block select lines - one for each 4k of memory. Your PET is failing memory test at exactly the point where it passes into the second 4k block from the first. In short, I think a failure at the block boundary is too much of a coincidence. I'd trace out what this line is doing from the 74154 (there is only one, and it's 24 pin, so you can't miss it!) to the RAM. Failing this, I'd suspect something else in the chip select logic. (It could, of course be a failure that affects a whole chip, but I'd try the other things after you've swapped RAM chips if the BYTES FREE doesn't change) As I said, I can lend you my copy of the circuit diagrams if you haven't already got one. Philip. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Power Technology Centre, Ratcliffe-on-Soar, Nottingham, NG11 0EE, UK Tel: +44 (0)115 936 2000 http://www.powertech.co.uk **********************************************************************

26 years, 3 months

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Toggling in PDP-11 Bootstraps

by brian.roth＠firstniagarabank.com

A good goal for you would be to get everything working under RT-11. That's a great way to learn. BTW, if you don't have a bootable 3rd party controller, or the DEC board with the boot ROMs, I hope you've figured out how to send the bootstrap over a serial line from a PC (I never did). Zane I did. I used to boot my 11/34 from RL02's with a 386 PC running Procomm. I believe I put the code in just a basic ASCII text file one line at a time with a carriage return after each and then uploaded the file as text over the same serial console line. Worked like a champ, and it sure saved the fingers from pressing those little chicklet keys on the programmers console...

26 years, 3 months

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OT: DSL and Apple Network Servers

by ckaiser＠oa.ptloma.edu

This is probably OT, so flames to my address. I finally tracked down a source of upgrades for my Apple Network Server 500. It will shortly be upgraded to 80MB RAM, and I'm mulling over buying a new processor card for it ($200! cough). MacWorks has some stuff in stock. So, with this buff discontinued box, I'm thinking of getting it a DSL line to boot. But I can't find a straight answer if all DSL services give you a static IP address or not. Do they? And should most of them work with AIX 4.1.4? I would think so, since it's just a DSL router and the ANS500 plugs into that like any other network. Thanks, sorry for the off-topic. (But hey, we've been discussing iOpeners all week, right? ;-) -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu -- FORTUNE: You will feel gypped by this fortune. -----------------------------

26 years, 3 months

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iOpener

by wilson＠dbit.dbit.com

Mine just arrived this morning, I had ordered it from Netpliance's own 800 # so evidently at least *they* still have stock even if CC doesn't (suits me, the nearest CC is 1.5 hours away from me anyway). In keeping with nerd tradition I've got the thing all in pieces before even powering it on for the first time -- boy they sure didn't skimp on screws! But the 44-pin connector is right there as promised. I'm thinking of maybe doing a tiny PCB rather than soldering 44 individual wires on, I wonder if there's a +12V source in hear anywhere so that standard 40-pin IDE drives could be used too and not just laptop drives? The case is *really* cramped though. John Wilson D Bit

26 years, 3 months

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Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs

by whdawson＠mlynk.com

Hello again, Well, due to the overwhelming response for these 2-port and 4-port Ehernet fanouts (actually, none) I'm posting this one more time. Since each of these weigh less than a pound packaged for shipping, your total cost for one to three is only $4.80, delivered in the US I will send these internationally, but the cost will be higher. The current list price on the two port units is $80.00+, and the 4 port units go for $200.00+. If there is no interest by tomorrow morning, I'll be listing them on eBay. Perhaps someone can tell me, on list, why no one on this list has any interest in these. Maybe everyone is saving their money for iOpeners d8^) ??? Thanks, Bill whdawson(a)mlynk.com -> Hello group, -> -> These were given to me recently by another member of this list -> who also has -> no use for them (thanks, Pat). They can be yours for 1.5 times shipping -> cost. All are in great condition and I have no reason to believe they -> shouldn't work. Specifically, what I have are: -> -> Quantity 3 Allied Telesis / CentreCom model AT-280 (2-port transceiver -> fan-out) -> -> Quantity 3 Allied Telesis / CentreCom model AT-480 (4-port transceiver -> fan-out) -> -> Quantity 3 Canary Communications model F 4000 Rev.B (4-port transceiver -> fan-out) -> -> All are DTE powered and "can be installed with any existing -> standards-based -> transceiver used in thicknet (10BASE5), thinnet (10BASE2), fiber optic -> (FOIRL) and twisted pair (10BASE-T) installations". -> -> Summary information on the Allied Telesis units can be found at -> http://www.lantech.nl/products/ati/fanout.html and technical -> information and -> manuals in pdf format can be found at -> http://www.alliancedatacom.com/allied-telesyn-products.htm by using the -> site's "Search Site" button and entering either AT-280 or AT-480. -> -> Information on the Canary transceivers can be found at -> http://www.canarycom.com by searching for F-4000 and using the -> first link in -> the returned list. Information in pdf format for the F-4000 can -> be found by -> using the eighth link in the returned list, under Transceiver Products. -> -> Please contact me off list if interested in one or some for your own use. -> Please don't ask if your intention is resale. -> -> I realize these aren't vintage yet, but I know some of you can -> and will use -> these in networking vintage equipment d8^) -> -> I'll post to the list when all have been spoken for. -> -> Bill -> -> whdawson(a)mlynk.com ->

26 years, 3 months

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Mos Technology RAM wanted

by pete＠dunnington.u-net.com

On Mar 21, 8:51, Richard Erlacher wrote: > I think the basic number you're looking for is "2101" from the same 1K > series as the famous "2102" which is a 16-pin 1kx1 with separate in and out. No. The earliest PETS almost all used the MCS6550 SRAMs I mentioned; a few used 2114s (different and fairly rare PCB). The later ones all used 4116s. None of them ever used 2101s or 2102s. I'm looking for a MCS6550; nothing else will do :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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GRiD stuff

by mrbill＠mrbill.net

I've got a GRIDcase 1530 here, with no power supply. I tried using one of the cheap 9.95 "multi-voltage, multi-attachment" generic power supplies I have here (use it to charge my mavica battery). Power supply's max is 12V. The GRiD says 16V, but someone told me they'll run off of 12V (automotive voltage) too. When I plug it in and hit the switch, the status lights above the keyboard flash on and off rapidly (continuously) in conjunction with a "ticking" noise. My guess is, the power supply isnt up to snuff with what the laptop wants. Anybody got a power supply (and/or an entire system WITH power supply) for a 1530 for sale? In fact, I'd be interested in ANY GRiD hardware that anybody on this list has for sale. Bill -- +---------------+-------------------+ | Bill Bradford | mrbill(a)mrbill.net | +-------BEGIN GEEK CODE BLOCK-------+-----------------------------------------+ | Version: 3.12 GCS d- s:++ a- C++++ US++++ P+ L- E--- W+++ N++ o K+++ w--- | | O- M-- V- PS PE+ Y+ PGP t+ 5 X- R-- tv+++ b++++ DI++++ D++ G++ e++ h r++ y+ | +--------END GEEK CODE BLOCK--------------------------------------------------+

26 years, 3 months

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Mac to Bernoulli Cable

by jsowden＠americansentry.net

I am looking for a cable to attach a Mac SE (DB25?) to an 8" Bernoulli Drive (Amphenol?) John Sowden American Sentry Systems, Inc. 1221 Andersen Drive San Rafael, CA 94901 (415) 457-2622 Voice (415) 457-2624 FAX "Serving the San Francisco Bay Area" jsowden(a)americansentry.net http://www.americansentry.net

26 years, 3 months

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Mos Technology RAM wanted

by edick＠idcomm.com

I'm not at all sure what you've said here, Allison. Aren't we in agreement? The 2101 was a 1k-bit sram organized as 256x4 with separate inputs and outputs. The 2102 was a 1k-bit sram organized as 1kx1 with separate in and out. The 2112 was a 1 k-bit sram organized as 256x4 with common ins and outs. They're all different, but whoever wrote the message to which I attached mine already knew that it was a 256x4 in a 22 pin package 0.400" wide. Additionally, there was a 2115 which was a high-speed (25 ns) 1kx1 sram with open drain outputs. I saw few applications for that one, however. It had a cousin, the 2125, which had the same pinout and architecture, but had tristate outputs. Things got muddled when the iNTEL folks started using unused numbers in the 1K-bit family, e.g. 2114, for memories larger than 1k-bits. The 2114, however, was just a microcomputer-compatible (slow) version of the already widely used 2148/49, which was a fast (35-70ns) equivalent to the 2114. They also made the 2147 which had the same bit count as the 2148/49 but with a 4kx1 organization with separate input and output and pinout compatible with the much slower TMS4044. The PET 2001 was pretty early among the production microcomputers, hence may have come along too early to capitalize on the high-volume production of the 4K-bit srams. Dick -----Original Message----- From: allisonp(a)world.std.com <allisonp(a)world.std.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, March 21, 2000 10:40 AM Subject: Re: Mos Technology RAM wanted > >2101 was 1kbits but by 4. 256x4 22pins. > >For that time it may have been 2112 or other cousins. > >Allison > >On Tue, 21 Mar 2000, Richard Erlacher wrote: > >> I think the basic number you're looking for is "2101" from the same 1K >> series as the famous "2102" which is a 16-pin 1kx1 with separate in and out. >> The 2101's I have are not fast enough to meet the 200ns spec. However, not >> much of anything that was readily available at the time the PET model 2001 >> came out was that fast. Either it was quite a bit faster, e.g. 2147, 2115, >> etc, or it was slower, e.g. 2114, 21L02, TMS4044 etc, which were typically >> 450 ns at that point in time. Those 450 ns parts worked handsomely with the >> 1 MHz 6502. Perhaps you'd be able to use a 2101. >> >> Let me know if you think that might work for you. I've had my small supply >> (maybe 4 pieces) since back in '76-'77 when I got my original 6501, though >> I've never used them for anything. >> >> Dick >> -----Original Message----- >> From: Pete Turnbull <pete(a)dunnington.u-net.com> >> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> >> Date: Tuesday, March 21, 2000 2:39 AM >> Subject: Re: Mos Technology RAM wanted >> >> >> >On Mar 20, 13:23, John Honniball wrote: >> >> >> >> On Sun, 19 Mar 2000 21:28:09 GMT Pete Turnbull >> ><pete(a)dunnington.u-net.com> wrote: >> > >> >> > One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an >> >> > equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. >> >> >> >> I'll have to check the RAMs in the spare PET that I >> >> keep in the garage. Can't remember whether they're SRAMs >> >> or DRAMs in the bigger PETs. >> > >> >Only the oldest 2001-x PETs use those SRAMs. I guess it's time to build >> >that upgrade board (a PAL, a pair of EPROMS, and some 6264s, a 62256, or >> >some cast-off PC cache). >> > >> >-- >> > >> >Pete Peter Turnbull >> > Dept. of Computer Science >> > University of York >> >

26 years, 3 months

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iOpener

by edick＠idcomm.com

I'm not certain I know which of the items on my list you're referring to , but I've learned that I have only five drives to deal with, so I'm not worrying about making a board at this juncture. I've got to adapt from two fairly standard connectors, i.e. 40-pin IDE and +12, 2x GND, +5, of which the +12 isn't needed, to that 44-pin connector on the notebook drives. The best arrangement I've seen is is a dual-row by 22 with short soldertails sticking strainght out from the connector in such a way as to facilitate soldering to a 2-sided PCB. That, at this point would work for me. I have an adapter between the two connector types but that's just a mite too large for my application, particularly since it restricts my ability to mount the drive such that it's centered on the PCB, half protruding through the top of the board and half through the bottom so as to avoid interference with the adjacent cards. So, John, did you find they were back-ordered on the ribbon cable? Since I'm in no hurry, perhaps it doesn't make much difference. You're right about the suitability of 50-conductor ribbon, though. Dick -----Original Message----- From: John Wilson <wilson(a)dbit.dbit.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, March 20, 2000 7:34 PM Subject: Re: iOpener >On Mon, Mar 20, 2000 at 01:13:45PM -0700, Richard Erlacher wrote: >> Do any of you fellows know of a ready/reasonable source of the 44-conductor >> connectors and cables used with notebook drives? I believe the spacing of >> the connector pins is 2mm. > >Digikey sells it, but it seems they're backordered on the AMP brand for >about a week, all they have is the 3M equivalent which costs 5x as much. >I just changed my order to the 3M stuff and now I'm kicking myself because >I forgot to ask whether they had the AMP version in 50 conductors, I'd be >happy to unzip the last 6 conductors and save myself $30!!! Geez. > >John Wilson >D Bit

26 years, 3 months

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3
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Mos Technology RAM wanted

by edick＠idcomm.com

I think the basic number you're looking for is "2101" from the same 1K series as the famous "2102" which is a 16-pin 1kx1 with separate in and out. The 2101's I have are not fast enough to meet the 200ns spec. However, not much of anything that was readily available at the time the PET model 2001 came out was that fast. Either it was quite a bit faster, e.g. 2147, 2115, etc, or it was slower, e.g. 2114, 21L02, TMS4044 etc, which were typically 450 ns at that point in time. Those 450 ns parts worked handsomely with the 1 MHz 6502. Perhaps you'd be able to use a 2101. Let me know if you think that might work for you. I've had my small supply (maybe 4 pieces) since back in '76-'77 when I got my original 6501, though I've never used them for anything. Dick -----Original Message----- From: Pete Turnbull <pete(a)dunnington.u-net.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, March 21, 2000 2:39 AM Subject: Re: Mos Technology RAM wanted >On Mar 20, 13:23, John Honniball wrote: >> >> On Sun, 19 Mar 2000 21:28:09 GMT Pete Turnbull ><pete(a)dunnington.u-net.com> wrote: > >> > One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an >> > equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. >> >> I'll have to check the RAMs in the spare PET that I >> keep in the garage. Can't remember whether they're SRAMs >> or DRAMs in the bigger PETs. > >Only the oldest 2001-x PETs use those SRAMs. I guess it's time to build >that upgrade board (a PAL, a pair of EPROMS, and some 6264s, a 62256, or >some cast-off PC cache). > >-- > >Pete Peter Turnbull > Dept. of Computer Science > University of York

26 years, 3 months

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iOpener

by Bob.Yates＠amana.com

Available at Circuit City in Little Rock, as of Friday!

26 years, 3 months

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New drives in the M3100/M76

by andy.sporner＠networkengines.com

> It is entirely possible to put non-DEC third party drives in > the VAXStation 3100/M76. Maybe somebody can clarify something for me. I had an 3100/M38 a few years ago and had to buy a disk for it. At the time I bought a Quantum 210 MB drive. In order to use it with VMS I had to get a special utility that I ran from my PC with the drive and had to turn off the "Write-Preallocation" feature off on the drive. Is this strictly a VMS thing?

26 years, 3 months

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Renex TMS-three Communications Controller

by donm＠cts.com

Is anyone interested in acquiring this rack mount communications controller in new condition with manual and disks. A very casual reading of the manual suggests that it is intended to provide access to IBM and compatible machines including Systems 360/370/3 as well as 4300, 8100, system 36 and AS/400. Communications protocols include Synchronous, SDLC, SNA, BISYNC, X.25, and 3270 Emulation. I would like to get at least $20 plus 1.2 x shipping for it, else I will strip it and send the metal off for recycling. In any event, it is gone by the end of March! -don

26 years, 3 months

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Motorola software for IBM 370

by paulrsm＠ameritech.net

I am still trying to track down the Motorola structured assembler for 68000. I found another lead in a 1983 Motorola software catalog. Motorola had the assembler, linker, and Pascal compiler available as "Pascal source code for the IBM 370 with Pascal VS2 on 9 track tape" (but the requirements said "any operating system with FORTRAN"). Do any big iron folks have this? Paul R. Santa-Maria Ann Arbor, Michigan USA paulrsm(a)ameritech.net

26 years, 3 months

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disk drives for iOpener/Amiga

by paulrsm＠ameritech.net

I have a few similar drives, but I am also considering getting an Amiga 1200 just to run Deluxe Paint. Is it an easy install into a hard-disk-less Amiga 1200? ---------- > From: Gary Hildebrand <ghldbrd(a)ccp.com> > To: classiccmp(a)classiccmp.org; Dave Libby <dwl9997(a)ccp.com> > Subject: Re: disk drives for iOpener > Date: Monday, March 20, 2000 09:20 PM > These drives are ideal for those of us who have Amiga 600/1200. Email me as > I am going to St Louis for an Amiga convention and can sell them PDQ.

26 years, 3 months

1
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iOpener

by edick＠idcomm.com

Do any of you fellows know of a ready/reasonable source of the 44-conductor connectors and cables used with notebook drives? I believe the spacing of the connector pins is 2mm. I need a limited about of this stuff and a few of the IDC connectors to be used at each end of the cable. The adapter I have for this drive type has a typical HD power connector on it along with an inline pc-mount connector that would also be of interest. Any suggestions? Dick -----Original Message----- From: John Wilson <wilson(a)dbit.dbit.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, March 20, 2000 12:19 PM Subject: Re: iOpener >On Mon, Mar 20, 2000 at 09:13:56AM -0800, Ethan Dicks wrote: >> There's great hack running around where you take a regular 44-pin cable >> that's long enough and attach a second connector immediately adjacent to >> the connector on one end. You use the inner pins of the end connector >> and the outer pins on the new connector to attach to the motherboard. >> >> ------------------- >> || |||| >> ^^ (use these "pins") >> drive end motherboard end > >Cute! Well that sure beats slicing the cable up into 22 pairs and trying to >get them stay down in the "twisted" position while you put on a connector. > >> || >> -------------------- >> || >> >> Wouldn't that simulate having a connector on the wrong side and reverse >> the effect of the motherboard wiring? > >Unfortunately not, IDC connectors don't work that way. You'll just tap the >same wires in different places, it's as if you took a regular cable and just >folded one end over, nothing has changed. I remember confusing the hell out >of myself with this the first time I tried to get a DZ11A cab kit working... > >> AFAIK, there is no ready source of 12V. Also, consider the power draw. A >> laptop drive pulls 500-700mA (2,5-3.5W), a desktop drive draws closer to >> 9W-15W. It's even a consideration when choosing a different >> CPU (ISTR the WinChip180 is rated at ~9W, most Pentia suck around 13-17W). > >Yeah actually I was wondering if the laptop drive is already pushing things. >The power supply is really tiny (integrated on the main board) and it's >powered by a puny wall wart transformer, the label says 81VA but even that's >hard to imagine given how light it is. > >> ObClassic: there's plenty of space on the flash disk to stick a small OS >> and a variety of apps including Kermit. > >I was thinking, making a PCMCIA flash card adapter for the 44-pin cable >wouldn't be hard at all, that might be another easy way to get stuff in >and out. > >> If you hacked the flash and disabled >> the hard disk (or had a way to specify the boot order), you could bring it >> up by default into a terminal program and use it as a console if it weren't >> running some other app. Yes, a dumb terminal is cheaper and probably more >> VT100 compliant (double-high characters spring to mind immediately), but a >> real DEC terminal is not as portable. > >Yeah I *wish* someone was making ASCII terminals like this box, it's perfect >for one, at least part time. But the box has too much potential to actually >*dedicate* your only one as being just a small/light VT100 replacement, which >is sort of a shame. > >But I figure, even if the Netpliance folks close the loophole (which seems >inevitable given all the press it's gotten) and we can't buy these boxes for >$99.95 for much longer, the regular users will get tired of them eventually >and there will be piles of them on eBay in a year or two, probably for even >less than the $99.95. *That* will be the perfect time to put one on every >flat surface in the whole house! Meanwhile, gotta get an order out to Digikey. > >John Wilson >D Bit

26 years, 3 months

4
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iOpener

by ethan_dicks＠yahoo.com

--- John Wilson <wilson(a)dbit.dbit.com> wrote: > Mine just arrived this morning, I had ordered it from Netpliance's own > 800 # so evidently at least *they* still have stock even if CC doesn't > (suits me, the nearest CC is 1.5 hours away from me anyway). Good for you. I didn't want to pay the shipping and I can afford to wait a week or two. > In keeping with nerd tradition I've got the thing all in pieces before even > powering it on for the first time -- Way to go. > But the 44-pin connector is right there as promised. I'm thinking of maybe > doing a tiny PCB rather than soldering 44 individual wires on... There's great hack running around where you take a regular 44-pin cable that's long enough and attach a second connector immediately adjacent to the connector on one end. You use the inner pins of the end connector and the outer pins on the new connector to attach to the motherboard. ------------------- || |||| ^^ (use these "pins") drive end motherboard end Since one way to view the problem is that the motherboard connector is on the "wrong side" of the PCB (causing pin 1 to map to pin 2, etc), couldn't you do make a cable like this... || -------------------- || Wouldn't that simulate having a connector on the wrong side and reverse the effect of the motherboard wiring? > I wonder if there's a +12V source in here anywhere so that standard 40-pin > IDE drives could be used too and not just laptop drives? AFAIK, there is no ready source of 12V. Also, consider the power draw. A laptop drive pulls 500-700mA (2,5-3.5W), a desktop drive draws closer to 9W-15W. It's even a consideration when choosing a different CPU (ISTR the WinChip180 is rated at ~9W, most Pentia suck around 13-17W). -ethan ObClassic: there's plenty of space on the flash disk to stick a small OS and a variety of apps including Kermit. If you hacked the flash and disabled the hard disk (or had a way to specify the boot order), you could bring it up by default into a terminal program and use it as a console if it weren't running some other app. Yes, a dumb terminal is cheaper and probably more VT100 compliant (double-high characters spring to mind immediately), but a real DEC terminal is not as portable. ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

26 years, 3 months

5
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disk drives for iOpener

by edick＠idcomm.com

I recently ran onto a few 2-1/2" drives of 250 MB capacity and using only 5 volts. These are Quantum drives in case it makes a difference, and claim to use a maximum of 0.5 Amps. Are these big enough to interest you guys? I haven't been following this particular thread, hence haven't a clue. Dick -----Original Message----- From: Ethan Dicks <ethan_dicks(a)yahoo.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, March 20, 2000 10:31 AM Subject: Re: iOpener > > >--- John Wilson <wilson(a)dbit.dbit.com> wrote: >> Mine just arrived this morning, I had ordered it from Netpliance's own >> 800 # so evidently at least *they* still have stock even if CC doesn't >> (suits me, the nearest CC is 1.5 hours away from me anyway). > >Good for you. I didn't want to pay the shipping and I can afford to wait >a week or two. > >> In keeping with nerd tradition I've got the thing all in pieces before even >> powering it on for the first time -- > >Way to go. > >> But the 44-pin connector is right there as promised. I'm thinking of maybe >> doing a tiny PCB rather than soldering 44 individual wires on... > >There's great hack running around where you take a regular 44-pin cable >that's long enough and attach a second connector immediately adjacent to >the connector on one end. You use the inner pins of the end connector >and the outer pins on the new connector to attach to the motherboard. > > ------------------- > || |||| > ^^ (use these "pins") > drive end motherboard end > >Since one way to view the problem is that the motherboard connector is >on the "wrong side" of the PCB (causing pin 1 to map to pin 2, etc), >couldn't you do make a cable like this... > > || > -------------------- > || > >Wouldn't that simulate having a connector on the wrong side and reverse >the effect of the motherboard wiring? > >> I wonder if there's a +12V source in here anywhere so that standard 40-pin >> IDE drives could be used too and not just laptop drives? > >AFAIK, there is no ready source of 12V. Also, consider the power draw. A >laptop drive pulls 500-700mA (2,5-3.5W), a desktop drive draws closer to >9W-15W. It's even a consideration when choosing a different >CPU (ISTR the WinChip180 is rated at ~9W, most Pentia suck around 13-17W). > >-ethan > >ObClassic: there's plenty of space on the flash disk to stick a small OS >and a variety of apps including Kermit. If you hacked the flash and disabled >the hard disk (or had a way to specify the boot order), you could bring it >up by default into a terminal program and use it as a console if it weren't >running some other app. Yes, a dumb terminal is cheaper and probably more >VT100 compliant (double-high characters spring to mind immediately), but a >real DEC terminal is not as portable. > > > > >===== >Even though my old e-mail address is no longer going to >vanish, please note my new public address: erd(a)iname.com > >The original webpage address is still going away. The >permanent home is: http://penguincentral.com/ > >See http://ohio.voyager.net/ for details. > >__________________________________________________ >Do You Yahoo!? >Talk to your friends online with Yahoo! Messenger. >http://im.yahoo.com

26 years, 3 months

2
1
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New drives in the M3100/M76

by sms＠antinode.org

From: Chuck McManis <cmcmanis(a)mcmanis.com> > Conclusions for the archives... > [...] VAXStation 3100/M76 [...] > On the M76 there is no requirement that the boot disk be smaller than 1GB > (apparently this is true on earlier models). It depends on what you mean by required. According to the VMS FAQ ("ftp://ftp.digital.com/pub/Digital/dec-faq/OpenVMS.txt", topic VAX5, "What system disk size limit on the MicroVAX and VAXstation 3100?"): [...] Systems that are affected by this limit: o VAXstation 3100 series, all members. No PROM upgrade is available. =========== [...] Generally, as I understand it, the corruption results from the firmware writing to a too-large disk, as when a crash dump file is written. As the firmware on these machines mentions both ULTRIX and VMS, I assume that it is comparably adept at wrapping around at the 1.07GB limit and corrupting a disk with either style file system. Disks larger than this limit are fine as data disks. (I have a 4GB disk in my model 38, for example.) They also work fine as system/boot disks, until something goes wrong, and the corruption occurs. (I boot my model 38 from a smaller, safer disk.) ------------------------------------------------------------------------ Steven M. Schweda (+1) 651-699-9818 (voice, home) 382 South Warwick Street (+1) 763-781-0308 (voice, work) Saint Paul MN 55105-2547 (+1) 763-781-0309 (facsimile, work) sms(a)antinode.org sms(a)provis.com (work)

26 years, 3 months

1
0
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iOpener

by Anthony.Eros＠compaq.com

I just brought one home -- it was an "open box" buy from Circuit City -- $79.95! I haven't plugged it in yet, but I will later this evening... -- Tony > ---------- > From: John Wilson[SMTP:wilson@dbit.dbit.com] > Reply To: classiccmp(a)classiccmp.org > Sent: Monday, March 20, 2000 10:40 AM > To: classiccmp(a)classiccmp.org > Subject: iOpener > > Mine just arrived this morning, I had ordered it from Netpliance's own > 800 # so evidently at least *they* still have stock even if CC doesn't > (suits me, the nearest CC is 1.5 hours away from me anyway). > > In keeping with nerd tradition I've got the thing all in pieces before > even > powering it on for the first time -- boy they sure didn't skimp on screws! > But the 44-pin connector is right there as promised. I'm thinking of > maybe > doing a tiny PCB rather than soldering 44 individual wires on, I wonder if > there's a +12V source in hear anywhere so that standard 40-pin IDE drives > could > be used too and not just laptop drives? The case is *really* cramped > though. > > John Wilson > D Bit >

26 years, 3 months

1
0
0 0

Need NEC PC-8886

by dastar＠siconic.com

Does anyone have a working NEC PC-8886? I think this is the model number. It may very well be an NEC APC. At any rate, it would be a model with 8" drives. I have some 8" disks (I believe they are single-sided but the box they came in says "2D" on it; they are 256 byte sectors) containing some valuable geological data for the country of Guatemala that I am trying to recover for a geophysicist working on a project in conjunction with the UN. They contain graphical maps and textual data that would be very useful for Guatemala. If anyone can loan me a working NEC computer that can possibly read these diskettes I'll be sure you share in any praise heaped upon us by Guatemala, and I promise to share any villager women they bestow upon me for my efforts. In the very least shipping costs will be reimbursed. I have an NEC PC that would probably be able to run whatever is on these things (providing they are still viable) but it doesn't work. In the meantime I'm going to go retrieve it from my warehouse and see if I can fiddle with it and coax it to be reborn. Please reply directly to me as I am not subscribed to ClassicCmp. sellam(a)vintage.org Thanks for any help!!! Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

2
2
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Mos Technology RAM wanted

by pete＠dunnington.u-net.com

On Mar 20, 13:23, John Honniball wrote: > > On Sun, 19 Mar 2000 21:28:09 GMT Pete Turnbull <pete(a)dunnington.u-net.com> wrote: > > One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an > > equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. > > I'll have to check the RAMs in the spare PET that I > keep in the garage. Can't remember whether they're SRAMs > or DRAMs in the bigger PETs. Only the oldest 2001-x PETs use those SRAMs. I guess it's time to build that upgrade board (a PAL, a pair of EPROMS, and some 6264s, a 62256, or some cast-off PC cache). -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

1
0
0 0

New drives in the M3100/M76

by andy.sporner＠networkengines.com

Thanks Allison, It has been a while since this--and I don't even have the machine anymore, but I guess I can consider this debunked. At the time it was VMS-5.5.4. I was using the machine as an X-terminal for want of it running real-X. (http://www.sporner.com/personal/andy_01.jpg sitting on it's side next to my big Sequent server). Thanks again! Andy > -----Original Message----- > From: allisonp(a)world.std.com [mailto:allisonp@world.std.com] > Sent: Monday, March 20, 2000 4:42 PM > To: Andy Sporner > Cc: 'Chuck McManis'; port-vax(a)netbsd.org; classiccmp(a)classiccmp.org > Subject: RE: New drives in the M3100/M76 > > > I tried a quantum SCSI I had (120mb) for laughs and it works > fine after > test-75, same for a bunch of other brands, some only needed > to be "init" > from VMS to be useable. I have no clue as to the fuss. I have: > > 1 3100/m76 > 3 3100/m10e > > None seems to have much problem with anything I have floating > around for > disks save for the 1gb limit on the /m10s for bootable system disks. > > Allison > > > > > On Mon, 20 Mar 2000, Andy Sporner wrote: > > > > > > It is entirely possible to put non-DEC third party drives in > > > the VAXStation 3100/M76. > > > > Maybe somebody can clarify something for me. I had an 3100/M38 > > a few years ago and had to buy a disk for it. At the time I > > bought a Quantum 210 MB drive. In order to use it with VMS > > I had to get a special utility that I ran from my PC with the > > drive and had to turn off the "Write-Preallocation" feature > > off on the drive. > > > > Is this strictly a VMS thing? > > >

26 years, 3 months

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iOpener

by CLASSICCMP＠trailing-edge.com

>Oh, and don't get me started on RA60/RA80 cables. Those darn things work >by magic. What makes them even more magic is that the white ones are different than the black ones! Tim.

26 years, 3 months

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New drives in the M3100/M76

by cmcmanis＠mcmanis.com

Conclusions for the archives... It is entirely possible to put non-DEC third party drives in the VAXStation 3100/M76. I have recently installed two 2.1 GB "Barracuda" drives in them and they are working flawlessly. The steps are: Install the drive, select an ID that isn't being used on the SCSI bus. Run the PROM based formatter on the drive using "TEST 75" to the monitor. Install your software on the drive. On the M76 there is no requirement that the boot disk be smaller than 1GB (apparently this is true on earlier models). This looks like it will turn out to be a good NetBSD development machine as it is reasonably fast (7+ VUPs), and reasonably compact as VAXen go. --Chuck

26 years, 3 months

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Mos Technology RAM wanted

by pete＠dunnington.u-net.com

On Mar 19, 17:42, Will Jennings wrote: > Pete, > Umm is that the same as a Motorola 6665BP20, which I know is 200ns... > If so I can help you. No, unfortunately they're about as different as you could get, for that era. MCS6550 is 22-pin 0.4" wide static 1k x 4; MCM6665 is 16-pin 0.3" wide dynamic 64k x 1. Thanks for the offer, though. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Mos Technology RAM wanted

by pete＠dunnington.u-net.com

I went to use my PET 2001-8K today, and found it claimed to only have 3071 bytes free :-( One of the MCS6550 RAMs has gone west. Does anyone have a spare, or an equivalent, for sale? It's a 22-pin 1024 x 4 200ns static RAM. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Info on Sharp PC-7000 and Wang WLTC Wanted

by Bob.Yates＠amana.com

Saw the recent request for info on the Sharp and want to add my name to the list for info. also looking for info on the Wang WLTC. Picked up one with no power supply!

26 years, 3 months

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2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs, almost free

by whdawson＠mlynk.com

Hello group, These were given to me recently by another member of this list who also has no use for them (thanks, Pat). They can be yours for 1.5 times shipping cost. All are in great condition and I have no reason to believe they shouldn't work. Specifically, what I have are: Quantity 3 Allied Telesis / CentreCom model AT-280 (2-port transceiver fan-out) Quantity 3 Allied Telesis / CentreCom model AT-480 (4-port transceiver fan-out) Quantity 3 Canary Communications model F 4000 Rev.B (4-port transceiver fan-out) All are DTE powered and "can be installed with any existing standards-based transceiver used in thicknet (10BASE5), thinnet (10BASE2), fiber optic (FOIRL) and twisted pair (10BASE-T) installations". Summary information on the Allied Telesis units can be found at http://www.lantech.nl/products/ati/fanout.html and technical information and manuals in pdf format can be found at http://www.alliancedatacom.com/allied-telesyn-products.htm by using the site's "Search Site" button and entering either AT-280 or AT-480. Information on the Canary transceivers can be found at http://www.canarycom.com by searching for F-4000 and using the first link in the returned list. Information in pdf format for the F-4000 can be found by using the eighth link in the returned list, under Transceiver Products. Please contact me off list if interested in one or some for your own use. Please don't ask if your intention is resale. I realize these aren't vintage yet, but I know some of you can and will use these in networking vintage equipment d8^) I'll post to the list when all have been spoken for. Bill whdawson(a)mlynk.com

26 years, 3 months

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Atari XE GS

by ckaiser＠oa.ptloma.edu

In today's thrift store trek, I came up with a Wico trackball for my C128 and one of those cute little Apple //c mini monochrome composite monitors which in the ultimate irony will go to the 121-colour Commodore Plus/4, which has been sharing a Commodore 1902 with two 128s. The other thing I found was an Atari XE GS with no power supply or peripherals. Since it was only $2, I picked it up. Aside from being dusty, it looks to be in good shape, so I'm going to try to clean it up. Can anyone tell me about them? How unusual are they? What is the pinout on the power supply (it's an 8-pin DIN)? >From the looks of it, it seems to be a 65XE in a case with no keyboard and just the regular Atari function keys (OPTION, etc.). I've heard of them but never actually seen one, and I don't know too much about the Atari 8-bits to start with. I assume it takes 5200 and regular Atari 400/800/1200/etc. cartridges and the usual Atari/Commodore joysticks. I'm also interested to know how uncommon they are. Thanks for any help! -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu -- In memory of Bruce Geller --------------------------------------------------

26 years, 3 months

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Hacking Netpliance??

by allisonp＠world.std.com

<On Sun, Mar 19, 2000 at 12:16:09PM -0800, Ethan Dicks wrote: <> Not yet... they are out of stock nationally (due to the ./ effect). < <Really? The guy I talked to when I ordered mine (at 1-800-IOPENER) said <they had plenty of them, in both colors. Well I doubt the order takers ge <much feedback. CircuitCity is the local supplier and they stocked out as I doubt they had more than 10 each store. I jumped on it last monday, still waiting for CC to cough up. Apparently the retail stream was a bit thin. Allison

26 years, 3 months

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Hacking Netpliance??

by allisonp＠world.std.com

<>It's been done and it is socket-7, solder? <> <>Allison < <I gather you've got to change a couple of the surface mount resistors. < <This URL gives the details: http://www.linux-hacker.net/iopener/cpu-up.htm I have that url bookmarked. Depends on the cpu, the polder P200 non split parts are drop in. The next generation MMX needs three voltages of some such and that board doesn't have that wired. <Hmm, actually I just might be able to pull this hack off.... Not sure I <want to risk the thing to my soldering abilities though. I'm not worried either way sas the basic cpu is plenty fast enough for my wants and I don't happen to have something laying around thats faster. Myz80 on a pent180 will do just fine. Allison

26 years, 3 months

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Mos Technology RAM wanted

by xds_sigma7＠hotmail.com

Pete, Umm is that the same as a Motorola 6665BP20, which I know is 200ns... If so I can help you. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 3 months

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Hacking Netpliance??

by ethan_dicks＠yahoo.com

--- "Richard A. Cini, Jr." <rcini(a)msn.com> wrote: > Anyone see the NYTimes article on the Netpliance i-Opener Internet access ap > pliance? Yep... they are at least a week behind the curve on reporting it. > Sounds like a neat hacking project. There's a USB port on the back, so a USB > -to-Ethernet converter would work there. I also read that one could lash a h > ard drive to it. > > Anyone done this yet? Not yet... they are out of stock nationally (due to the ./ effect). Mine is on order and won't arrive for at least a week or two. I've heard that Netpliance is evaluating how to reword their ads/sales agreements/etc. to make the idea of hacking one less attractive because they are currently subsidizing a $300-$400 machine to sell their ISP service. If you order one direct from the company, they "include" the first month's service on the sale, but you can cancel after that. I'm wondering if they will go to a rebate sales model - buy the unit at $300-$350 and get the first year on the 'net "free". In any case, I'll be getting mine eventually. One of the nicknames for the box amongst the hacker community is the "iOpenedIt". -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

26 years, 3 months

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Small router

by jeff.kaneko＠juno.com

try: http://www.freebsd.org/~picobsd/picobsd.html On Sun, 19 Mar 2000 21:56:02 +0100 "Sipke de Wal" <sipke(a)wxs.nl> writes: > > ----- Original Message ----- > From: Bill Pechter <pechter(a)pechter.dyndns.org> > To: <classiccmp(a)classiccmp.org> > Sent: Sunday, March 19, 2000 2:32 PM > Subject: Small router > > > > Take a look at picobsd based on FreeBSD. > > > > Bill > > > > > > Where can I find a llink to picobsd ? > > Sipke > > ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

26 years, 3 months

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