test-drb November 2005

test-drb@ccmp.vtda.org

255 participants
692 discussions

disk space for manuals and how complete is manx

by alanp＠snowmoose.com

I have finally gotten around to scanning my manuals for my VAX 11/750. However, the web hosting company for my domain has low disk space limits compared to the size of the scanned manuals. Is there somewhere that I can put the scanned manuals where people can get to them? Also, I have been using manx to determine what manuals need to be scanned. Are the references to online docs on manx complete as far as what manuals are available online? alan

18 years, 8 months

HP 1000/2000 cache on ePay

by oldgeek＠thegeekslair.org

Oh great almighty screaming gort! Some major HP gear with 'buy it now' prices... Items 8702744737 8702428795 5244771878

18 years, 8 months

FPGA VAX update

by dwight＠ca2h0430.amd.com

>From: "Chuck Guzis" <cclist at sydex.com> ---snip--- > >I've always thought that 24 bits is a nice word size for a small computer. >Divisible by 2, 3, 4, 6, 8 and 12 bits. An instruction could use 6 bits >for opcode and 3 register addresses out of a 64 register file... Hi My thought is to make a variable word length processor using a single bit ALU. Of course, I've been thinking in terms of a relay based machine. Dwight

18 years, 8 months

I'm getting out: Components Available, Part 1

by richard.beaudry＠gmail.com

Hello all, For many reasons, which I don't care to detail, I'm getting out of the "business" of vintage computing (In fact, I'm no longer subscribed, so don't reply to the list, because I won't get it). 95% of my collection has been sold, given away, or dumped, and I only have a few more items, plus the components listed below. I am offering these components to the best offer, plus shipping from MA, USA, Zip Code 01473. I *strongly* prefer PayPal, but will take USPS Money Order (*no other payment methods, please*). These components have been stored cool and dry, but are untested. Also, many of them have *not* been stored in anti-stat drawers, so please keep that in mind. I will ship on anti-stat foam if posible, or wrapped in foil if I am unable to put them in anti-stat foam. Vast majority of date codes are in the late 70' to early 80's. I'm not sure what a lot of these even do, and I don't have datasheets, so you're on your own identifying them :-) I'll keep the bidding open until 10/31, midnight, my time. If you are interested, please contact me *off-list* (richard.beaudry at gmail.com) with offers, and let me know your ZIP or country, so I can estimate shipping. I will let the final list of people know on 11/1 (or thereabouts) by email what they can get. Part 2 will be listed in a week or two, when I finish cataloging it... Here's the list: Qty. Item. 6 HP 5082-7340 Hexadecimal Display 8 TI TIL311 Display 2 7812 TO-220 CASE 6 LM-317T TO-220 CASE 5 UA741CP (TI) 8-PIN DIP 68 UA7912UC TO-220 CASE 14 UA78H05SC TO-3 CASE 12 UA78H12ASC TO-3 CASE 20 VH248 FULL-WAVE BRIDGE RECTIFIER 76 TL780-05CKC TO-220 (HIGH-CURRENT 5V REG., I THINK) 10 1A 250V FAST-BLOW 3AG FUSE 6 40-PIN Augat Socket (white plastic, gold machined-pin) labeled "Microprocessor Carrier" 28 18-pin Augat machined-pin wire wrap socket 4 40-pin Augat machined-pin wire wrap socket 9 28-pin Augat machined-pin wire wrap socket 34 18-pin Augat machined-pin wire wrap socket 4 16-pin single-row header, wire-wrap tail 35 30-pin dual-row header (15-pins per row), solder-tail 11 spst momentary push-button switches (6 black, 5 red), button dia. 1/4" 25 spdt mini-toggle switches, 3A 125VAC, 3/8" toggle length 45 spdt toggle switches, marked with both 2A 250VAC and 5A 120VAC, C&K UII, 7/16" toggle length 1 AD7506SD 2 AD521JD 4 DAC 888 FX 2 DAC 08 BC 1 DAC 0800 LCN 4 AI-2625-5 15 UGN3203 24 ULN2004A 11 ULN2068B 73 AM26LS31PC 71 AM26LS33PC 11 N82S103N (some late 70's date codes) 19 1489 RS-232 (mixed vendors) 41 1488 RS-232 (mixed vendors) 7 N8T95 1 N8X320N 4 N8T97N 12 N8T32N 1 TRW 08HUJ5C 39 TRW TDC-1006J 9 SAA1027 8 MC10H166P 4 TCM29C13J 25 N8T30N 1 WD2010B-PL 1 SMC FDC 1795 1 SAB 1797-02P 1 WD8250CL-20 1 WD10C20B-PH 1 WD1100-CE 1 WD1010PL-05 1 WD1015-PL 1 Adaptec AIC-100 1 Adaptec AIC-250 4 AY-3-8910A 2 ISD 1000AP ('93-'94 date) voice recorder IC 3 N8S100N 9 MM58167AN 25 N82S129N 2 UM8397 2 2122CN (logo looks like "XR") 3 2120CP (same "XR" looking logo) 6 AMD AM9264DPC 1 Rockwell (?) 10464-13 1 SC87C51 CGN40 1 NCR 90C98 1 VTI VL82C50-PC 1 Intel p82586 1 HM82C11C 2 AY-5-1013A UART 1 R68561P 1 COM9026BI 1 R2121A-01 2 8153C (logo looks like "EA") 2 8151C (again, "EA" logo) 1 Intel P89027 1 TLC 32040CN 2 N9403N 1 N8X305I 6 N8X300I 1 Intel 8288 1 Intel 8284 2 LM311N 7 9643TC 6 MC10H161P 3 DG201ACJ 4 MM5280N 2 MCM6164C55 1 Analog Devices ADLH0033G (circular can, 12-pin) 1 LM319N 1 LM101AD 1 XEBEC 104648D 8 Intel P5101L-1 5 NEC marked D780C-1 3 unused PAL16L8A-2CN 10 MC14050BCP 1 VH048 Bridge Rectifier 6 VH448 Bridge Rectifier 1 VARO IN4436, TO-3 case w/ what looks like a heat sink Thanks, Rich B.

18 years, 8 months

FA: IBM DISPLAYWRITER SYSTEM MANUALS AND DISKS, VINTAGE

by rigdonj＠cfl.rr.com

Ebay Item number: 8717977665. Located in England :-( Joe

18 years, 8 months

FPGA VAX update, now DIY TTL computers

by ajp166＠bellatlantic.net

> >Subject: Re: FPGA VAX update, now DIY TTL computers > From: Paul Koning <pkoning at equallogic.com> > Date: Fri, 04 Nov 2005 10:09:17 -0500 > To: cctalk at classiccmp.org > >>>>>> "Kevin" == Kevin Handy <kth at srv.net> writes: > > Kevin> Allison wrote: > >> If you ask me the real horror of parity memory is it only tells > >> you disaster > >> happend just as your about to crash. ... > > Kevin> Parity depends on if you would prefer a crash to silently > Kevin> generating incorrect results. > > Kevin> ECC tries to hide the errors, but can still cause a crash if > Kevin> too many bits change. > >Correct. And all error checking codes will fail to detect certain >errors. > >Which is the right answer depends on what kind of errors you consider >likely enough to worry about, and what recovery you require. > > paul There is also the matter of fault tolerence. Parity doen't provide that unless the OS can map out the offending bank and the offending bank isn't in a critical location. ECC can keep you going if you have a stuck bit but it's up to the user/maintence to fix asap. Allison

18 years, 8 months

Musical Geeks, was Re: anadisk/teledisk/xenocopy/imagedisk

by marvin＠rain.org

I've been playing classical piano for quite a few years and started taking lessons about 15 years ago from someone who was good. We became friends as well, and I'd still be taking lessons if she hadn't died 5 years ago (89 years old.) It would be nice to have the time to learn to sight read :). On 11/3/2005 at 9:13 PM Fred Cisin wrote: >I stopped playing the tuba 40 years ago. >My hearing is way too bad to subject anybody to listening to it. I took up the tuba in 1997, being a nearsighted piano player since I was a kid. My wife encouraged me to take up an instrument that I could be more "sociable" with. I'm still nearsighted, but since then, I've also learned double bass and am setting my sights on learning viola this year. Just another noise to torment the dogs... Are musically-minded people still as commonplace in the computer business as they once were? Cheers, Chuck

18 years, 8 months

TEAC FD-55GFR = Quad Density?

by ajp166＠bellatlantic.net

> >Subject: Re: TEAC FD-55GFR = Quad Density? > From: Fred Cisin <cisin at xenosoft.com> > Date: Fri, 07 Oct 2005 16:34:17 -0700 (PDT) > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> >BOTH. >The 55F is "720K" only; 55G and GFR are 1.2M. >The 55GFR is a reliable and versatile drive. FD55A single sided 48tpi 300rpm FD55B Two sided 48tpi 300 rpm FD55E single sided 96tpi 300rpm FD55F two sided 96tpi 300rpm FD55G two sides 96tpi 300/360rpm >It is not so good with hard-sectored, or NO-index reading. Works great with NS* hard sector controller at 300rpm. >The difference between 1.2M and "720K", sometimes called "QUAD density" by >the marketing people, are 360 v 300 RPM, 250K v 500K sata transfer rate, >and different current levels at the heads (controlleable on the >interface). They are both 96TPI. QD is for those systems that DD was 360k (48tpi). QD system could be 720k, 780k(amproLB). >To do "quad" in an "HD" drive requires stepping at 96TPI, but the data >transfer rate, and current levels at "360K" levels. Or the common QD systems I have the data rate is same as DD (still 300rpm) but there are twice as many tracks or quad. 5.25 floppies started at 80k (sa400 single density one side 40 tracks (48tpi) all the way to near 800k (FD55F, DD, two sides 96tpi). There were enough marketing names to the capacity jumps to confuse even the marketers. however once the data rates hit DD there were SSDD(160K raw), DSDD(400k raw) and then DSQD(800k raw) and there was even a SSQD(400K raw) (yep 96tpi DD data rate and only one side). that last one was know widely as RX50 and also appeared using FD55E on Visual 1050. There was the 1.2mb PC thing. This is why 5.25 floppy was so much confusion as it morphed from the 35 track SA400 through the FD55GFR. There there were the formats applied.. [open can, worms!, run!] Allison

18 years, 8 months

FPGA VAX update, now DIY TTL computers

by ajp166＠bellatlantic.net

> >Subject: Re: FPGA VAX update, now DIY TTL computers > From: "Chuck Guzis" <cclist at sydex.com> > Date: Thu, 03 Nov 2005 15:22:03 -0800 > To: cctalk at classiccmp.org > >On 11/3/2005 at 7:53 PM ard at p850ug1.demon.co.uk wrote: > >>There was a hrrible thing called fake parity memory. It stored 8 bits and >>calaculted the parity bit on a read (ignored the incoming parity bit on a >>write) to keep the memory controller happy. Of course you can't store 9 >>bits in that type of device. > >Of course you can, as long as the bits you're storing agree with the parity >of the 8 bits... > >:) If you ask me the real horror of parity memory is it only tells you disaster happend just as your about to crash. It offers little to system reliability and data integrity that real ECC can provide. Like Tim O' said years ago it's all a plot to sell more ram. Allison

18 years, 8 months

New Bounty: Atari SuperGraphics or 3-D Display System & Game Tool ($$$)

by vcf＠siconic.com

Currently looking for 3-D Display System & Game Tool (by Bill Budge) which also had an Atari version (by Paul Lutus). The Atari version may have also been called Atari SuperGraphics. Anyone have it? Contact me ASAP (directly via e-mail). I need it soon :) Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

18 years, 8 months

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test-drb November 2005