test-drb December 2017

test-drb@ccmp.vtda.org

127 participants
147 discussions

OT: Argh--my old faithful HP16C is failing!

by cclist＠sydex.com

Today, I picked up my trusty HP16C that's been with me through thick and thin and noticed a black splotch extending across about half the display. This is with the power off. Is the LCD display failing? Can it be repaired? This thing has been a a sidekick of my for a very long time and I'd hate to see it go. Anyone know? --Chuck

6 years, 10 months

PDP8 ALGOL

by chd＠chdickman.com

I have been looking at the available software for the PDP8, particularly languages. I see there was an ALGOL. The source is archived on Bitsavers and dbit. There is some information here: http://www.softwarepreservation.org/projects/ALGOL/algol60impl/ Has anyone played with this before? Is there any additional information on how to use it? -chuck

6 years, 10 months

Writeup on Preventing Third-party SMTP Relay MULTINET

by billdegnan＠gmail.com

If anyone is interested, I documented a fairly easy way to prevent third party SMTP relaying with MULTINET 4.1 on a VMS 5 MicroVAX. http://vintagecomputer.net/browse_thread.cfm?id=708 I did cheat a little...I set up an email alias on my modern mail server to forward messages to a single email address on the VAX. This was necessary because otherwise I'd have to have added the mail host ID of every mail server permitted to send email to users on the VAX. Also, I will have to create an alias on the modern mail server for every VAX user who wanted to get mail. I agree ultimately that MULTINET email is too limited, but for my purposes I am satisfied. It's just for the learning experience. Bill

6 years, 10 months

Can anyone identify what this board is/does?

by tony.aiuto＠gmail.com

https://www.ebay.com/itm/263005049078 EBay listing for a "Soviet Magnetic Ferrite Core Memory Board". It looks like 20 something gigantic cores and a lot of diodes. I am guessing it is some kind of ROM, but it doesn't look like a rope memory. And maybe the cores are not cores at all, but some sort of inductor. I've not seen this before.

6 years, 10 months

SOL-20 and Helios-II in Louisville

by brian＠marstella.net

Hope this isn't too far off topic, but noticed a SOL-20, Helios-II, and several disks available in Louisville via Craigslist. Can't afford more stuff this year myself but price doesn't seem too bad. i don't know the person that has it, just found it as I was searching. https://louisville.craigslist.org/sys/d/processor-technology-sol-20/6391107… Regards, Brian.

6 years, 10 months

test

by jwest＠classiccmp.org

Test - no reply needed.

6 years, 10 months

Old DEC PROM Images

by bill.gunshannon＠hotmail.com

I am trying to bring some of my old PDP-11's back to life. Does anyone have or know of a source for PROM Images? I need the images for the M8189 (11/23+) and would also love to get the images for my DECTalk. bill

6 years, 10 months

Altair Peripheral Emulator

by silent700＠gmail.com

On Nov 29, 2017 17:15, "Toby Thain via cctalk" <cctalk at classiccmp.org> wrote: > On 11/29/2017 1:47 PM, drlegendre . via cctalk I didn't have as much luck with Windows Photo Viewer. While it does support multipage TIF, it seemed to hang after a few pages. Irfanview is a pretty solid viewer/manipulator under Windows. I've been using it to burst those TIFs into individual pages before making PDFs out of them. I'll post a link to them when they're ready. J

6 years, 10 months

Altair Peripheral Emulator - site recovered

by rich.cini＠verizon.net

All ? ??????????????? For those interested in APE (the Altair Peripheral Emulator by Frank Barberis), I have recovered the site (with his permission) and Jay has agreed to host it on Classiccmp (thank you Jay!). It can be accessed at http://ape.classiccmp.org. ??????????????? No development has been done on it since 2014 when the original Comcast site went dark. Enjoy Rich -- Rich Cini http://www.classiccmp.org/cini http://www.classiccmp.org/altair32

6 years, 10 months

TRS80 Model 1 video RAM (2102A)

by binarydinosaurs＠gmail.com

Hi folks, After sorting out the Model 4P (thanks to all who provided hints!) and scrubbing it up so it almost looks new again I turned attention to my Model 1 Level II which had been dead for at least the same amount of time as the Model 4. There?s some excellent troubleshooting tips for these machines out there and I quickly discovered a bad RAM chip, swap that for a NOS one and we?d be back in business if the video RAM wasn?t failing. One of the 4 2102A chips is failing (MEM SIZE becomes OEO SIZE) and I?d like to double check this before I stump up the ukp4 required for a pair of NOS ones, can anyone think of a machine from back then that also used 2102A or 2102LPFC or NTE2102 video RAM? Cheers! ? Adrian/Witchy Binary Dinosaurs - Celebrating Computing History from 1972 onwards

6 years, 10 months

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test-drb December 2017