test-drb October 2017

test-drb@ccmp.vtda.org

91 participants
94 discussions

by barythrin＠gmail.com

Yes, but the irony if us replying on-list isn't lost. -------- Original message --------From: Robert via cctalk <cctalk at classiccmp.org> Date: 10/24/17 11:40 AM (GMT-06:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Is it really that quiet out there? The last one that I received was October 20th. Robert

6 years, 5 months

Digression - Ah Yes!! The PDP-10

by COURYHOUSE＠aol.com

oddly there were times you could dial into a broken dec 10 connect and end up connected to someone elses session.... Ed# In a message dated 10/25/2017 2:18:30 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Robert > Adamson via cctalk > Sent: 25 October 2017 20:56 > To: cctech at classiccmp.org > Subject: Digression - Ah Yes!! The PDP-10 > > Beginning of the 70's I was using a pdp-10 at TSL (Time Sharing Limited, UK) > over a phone line writing logic simulation software in Fortran. Remember it > fondly, especially the number of times I needed to redial in and try to > reconnect to my session. Still smell the teletype. Cost about ?10 for the 20 > seconds cpu-time or so just to compile the program!!! > I used to use the DECSYSTEM-20 from a Teletype (until they got replaced by VDUs). That is why I really wanted a nice Model 33 ASR, which I now have. I sometimes connect it up to SIMH running TOPS-20 to relive the happiest part of my school days. > Roll on a few years and I was actually at the console of a 10 at Smiths doing IC > layout graphics interactively on their Lady Jane suite. What a great single-user > machine! > > (and I still remember my username and password from TSL, typed it so often it > burned in). >

6 years, 5 months

Cyclops page (Popular Electronics and Cromemco)

by wh.sudbrink＠verizon.net

Hi, In case anyone is interested, I have finally cobbled together a web page that documents the construction of the Popular Electronics Cyclops camera that I exhibited at the 2016 VCF East. It also documents my work to produce a Cromemco S-100 Cyclops that I hope to exhibit at the 2018 VCF East. The page is here: http://wsudbrink.dyndns.org:8080/cyclops/index.html The Cromemco S-100 Cyclops starts down the page a bit. Bill S. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

6 years, 6 months

Cleaning and Restoring a Badly Corroded PSU

by shadoooo＠gmail.com

Hello, the vertical heat sinks for the TO220 with this design are fairly common, I saw them many times on various boards. However, as they are simply aluminum parts, you can clean them for sure. After removing the screw, you could try simply with an hard brush. If badly corroded, remove the bubbles of oxide with a thin sanding paper, then you could restore the opaque aspect submerging for few seconds in caustic sodium solution. Be aware to protect eyes and skin! Replace the RIFA X2 capacitor!!!! Andrea

6 years, 6 months

Fujitsu M2235S

by pb＠pbcl.net

Anybody familiar with the internals of these disks? I have one here which seems to have the positioner stuck at track zero. I'm not sure whether it's likely to be just a bit sticky and in need of some assistance or whether there is some sort of latch involved, and I am a bit reluctant to just pull the lid off the chamber to find out. Thanks Phil

6 years, 6 months

HP 2640S terminal for sale in closed Facebook group in Sweden.

by mattislind＠gmail.com

https://scontent-arn2-1.xx.fbcdn.net/v/t31.0-8/s720x720/22713265_1015612717… I am not the seller. It looks like it is working. The seller confirms that there are some screen mold. If there is anyone that is interested I can get you in contact with the seller. /Mattis

6 years, 6 months

HP 21mx/whatever processor works with doublesided key... i forgot model#

by COURYHOUSE＠aol.com

IT RUNS MEMORY RESIDENT LOADED FROM PAPER TAPE? ED# In a message dated 10/20/2017 7:37:48 A.M. US Mountain Standard Time, jwest at classiccmp.org writes: "Forth-like" system that is well developed/flushedout. So in addition to BASIC, you get oh-so-many-wonderful-things. I very highly recommend that anyone messing with 21mx/1000 systems take a good look at HP-IPL/OS.

6 years, 6 months

Which Dec Emulation is the MOST useful and Versatile?

by computerdoc＠sc.rr.com

Hi DEC Enthusiast's, If I were to have to decide on just one model DEC PDP system to run in a DEC Emulator, which one would be the most useful, versatile and has the most software available for it? I have only ever used a real PDP-8/e system way back in high school so I'm not up to par on any other model of DEC PDP system and I only know BASIC on the PDP-8/e so not much there either. I hear a lot about the PDP-11. I found out that there were 16 major PDP models at one time so I'm not too sure which one to pick. I built Oscar Vermeulen's PiDP-8/I which I'm waiting on 1 part for. Other than that project which is in a holding pattern at the moment, I have no other PDP anything running in any form. Back in the day when Bill Gates and company 1st started out, I had always wondered how they developed their very 1st software program - Altair Basic. I was pleasantly surprised one day when I saw a B/W photo of a young Bill Gates bending over the operator at what looked like a very small computer. Maybe it was just a terminal. I don't remember. I understand they did software development on a DEC PDP of some sort. Finding this out regenerated my interest in the DEC PDP line of computers. I have many projects in the works already so I decided to setup a software emulation of just one of the DEC PDP models. I have heard a lot about the PDP-11 which if the information I read is correct was 16-bits. My PiDP-8/I is 12 bits. I understand the PDP 10 was 36-bits and the PDP-15 was 18-bit. The PDP-11 is the model I hear the most about. I also have some experience on some version of a VAX when I was in the Air Force so I'm thinking of getting a VAX emulation going at some point too. So if I'm going to do this, what suggestions, pointers, experiences, etcetera do you guys have for me. I am very interested in the DEC PDP equipment though next to no experience so I have no basis to make a decision. This is a serious request so I would definitely like to hear what you all have to say. If you have read this far, thank you. Take care my friends. Kip Koon computerdoc at sc.rr.com http://www.cocopedia.com/wiki/index.php/User:Computerdoc

6 years, 6 months

VCF PNW (Seattle) exhibitor registration is open

by cctalk＠snarc.net

Hello cctalkers! Join us as an exhibitor for the inaugural Vintage Computer Festival Pacific-Northwest, Feb. 10-11, at the Living Computer Museum in Seattle. http://www.vcfed.org/registration/exhibitor_register-online.php?event_id=5 ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

6 years, 6 months

Convex Computer Corporation manuals

by unibus＠gmail.com

Anybody want some Convex Computer Corporation manuals on microfiche. The titles are: - CONVEX C Guide - CONVEX C Optimization Guide - CONVEX FORTRAN User's Guide - CONVEX FORTRAN Reference Manual - CONVEX FORTRAN Optimization Guide - CONVEX VECLIB User's Guide - CONVEX LSQPACK User's Guide Free to a good home or it will be plastic recycling

6 years, 6 months

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test-drb October 2017