Included tags: pdp-8 ×
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Looking for PDP-8/E Floating Point Packages

VCFed about 3 months ago

I have found the source code for DEC-8E-NEAEA-A, the 23-bit EAE version, on David Gesswein's site at <http://www.pdp8online.c... Fortunately, this is the one described in the 1972 edition o …
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DEC PDP-8/i Front Panel $40

VCFed about 4 months ago

Selling a DEC PDP-8/i front panel for $40. In very good condition with minor separation of clear coat along the edge in the upper right, under load add, and step counter as shown in pics. I am near Milwaukee WI. Will ship to contiguous US at buyer's me …

OS/8 questions

VCFed about 6 months ago

I have been puzzled for a while about the delay of about 1 - 2 seconds in the output of the OS/8 DIR command for larger directories. This delay is very pronounced when your serial speed is 9600 bps or faster. Interestingly on my PDP-8/E with AC selected f …

Dec connector block

VCFed about 6 months ago

Does anyone have a set of Dual Hight connector blocks and the mounting bar for a 19 inch rack? Like the ones in a pdp-8/L or 8/I. I’m located in Chico, Calif. An asr-33 would also be nice too. Thanks all …

Me and my pdp-8/L

VCFed about 6 months ago

Hello everyone, I am new to this forum and I would like to introduce myself to you all. The name is Doug V. I’m located in the north part of California. I’m a level 3-4 Arcade Tech. Meaning I repair Pinball machines and all arcade equipment. Been doing …

Starting up a PDP 8/e

VCFed about 7 months ago

Its that time of year, and my latest project is to try and restore a pdp 8/e to its former glory. Hardware is all clean, but the first job in hand is to get he PSU working. This was powered up 4-5 years ago without issue, but I want to be careful. I've r …

Serial PDP-8/e like computer?

VCFed about 7 months ago

I have been thinking about building a PDP-8/e clone using TTL logic and SRAM for memory but designing the CPU as a serial CPU like the PDP-8/s. Rather than cloning the 8/s I thought it would make sense to make it functionally like an 8/e so that 8/e softw …

Anybody archive http://wwcm.synology.me/scanned.html

VCFed about 8 months ago

I was going to capture the PDP-8 documents but they went away before I grabbed them. Archive.org doesn't seem to have the linked to documents. https://web.arch... far as I can tell some of the …
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PDP-8 code to c converter

Retro Computing Forum about 8 months ago

I’ve tested again all perl scripts by Vincent Slyngstad this time with my new 5162 ROM combination. I’ve also tested the disk dir viewers (OS8 and TSS8) with some other disk files like an SBC6120 .img file and others. Sixbit.pl needs as in …
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Intersil Intercept III development system, color photo and ROM listing

Retro Computing Forum about 8 months ago

I found this website some years ago, before purchasing my Festo device. Recently I stumbled again on this link. In the 6100 PDFs there are poor b&w photos of an Intercept Jr and/or Intercept I/II but I think I never found an Intercept III. …

Ultimate PDP-8 ideas thread

VCFed about 8 months ago

I have been discussing many projects with various people lately, and thought it would be a good idea to get these out to everyone to "vote" on them and express interest to help myself and others prioritize. I will also touch on projects already c …
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Another PDP-8 emulators and DECMate II/III ROM dumps and tools

Retro Computing Forum about 8 months ago

I found some more PDP-8 emulators. First one running under JAVA. Somehow it didn’t run under my linux (JAVA installed). But the download runs under Windows. Nice GUI almost like the MAC one with all basic devices. And an included terminal. I …

What backplane is this?

VCFed about 8 months ago

Hello, A while back I picked up a DEC backplane on ebay. The description was not detailed, and the photos were not great, but it looked like a DEC PDP-8 or PDP-11 backplane, and I have cards for both, just waiting for a backplane. I do not recognize thi …

PDP-11/34 restoration

VCFed about 9 months ago

I am restoring a PDP-11/34 in what I think is a BA11-K box and found the 11/34 related manuals & drawings on Bitsavers. While restoring my LAB-8/e and PDP-8/e I found the 8/e maintenance manuals with detailed theory of operation very useful. I could …
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Educ 8 a PDP 8 like computer from down under in 1974

Retro Computing Forum about 9 months ago

http://teenix.org/educ8.html 1 post - 1 participant Read full topic …

SerialDisk Fun and a question.

VCFed about 9 months ago

I've been having some fun with my Serial Disk Raspberry Pi. I modified the software to use 3 GPIOs for an RGB LED. Here is a video of my Serial Disk Tardis with LEDs. Blue = Waiting for Commands (2Hz, 50% duty cycle) Green = Sending data to the PDP-8 Re …

Good inventory program to keep track of my DEC parts and stuff

VCFed about 9 months ago

I'm looking for a good inventory program to help me keep track of all of my PDP-8 stuff. I would like to keep track of physical location, board etch revision, board modification revision, bus type, where used, etc. If you have any good ideas, please let …
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Computers / computer people on coins and stamps - Zuse undeciphered code

Retro Computing Forum about 10 months ago

I recently found this German 2010 10 EUR coin showing Konrad Zuse (100th anniversary). This one is partially gold plated. Usual coins are just silver On top is a 4-track paper tape, I recently had a post about 4 tracks PDP-8 stats program, Fe …

PDP-8 MAINDEC DIRXBD question

VCFed about 10 months ago

What is the proper way to answer this question when prompted on the console: .RUN SDA1 DIRXBD.SV …
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Retro mainframe OSes in Docker

Retro Computing Forum about 11 months ago

What’s old is new again… OldBytes Space - Mastodon – 8 Jul 23 retroprom (@retroprom@oldbytes.space) Someone has pulled me back into some mainframe retrocomputing. One thing that I've been doing is to upd …

PDP-8 RK05 DECpack (16-sector)

VCFed about 11 months ago

FYI: https://www.ebay.com/itm/30... common on eBay in recent years than the 12-sector RK05 DECpack for the PDP-11. …
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PDP-8 stats program, Ferranti Sirius emulator, papertapes with 4 rows only

Retro Computing Forum about 11 months ago

First I found an interesting statistics program for PDP-8 under OS/8 and Fortran IV (decus 8-660) available in different disk formats and separate files svn - Revision 5499: /trunk/pdp8/src/decus/8-660... …
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100 videos featuring front panels and toggle switches

Retro Computing Forum about 12 months ago

Here’s a playlist to explore: Toggling (computer front panel) Featuring PDP-11, Altair, Intellec, homebrew, PDP-8, Elliott 803, Magic-1, Zusie, IBM 360, Mark-8, KENBAK, ABC, HP 2114B and 2116A, Nova, IMSAI 8080, Cambridge MK.14, EASY-4, Hon …
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Intersil Intercept Jr. and printing ASCII text on papertape, PDP-8 model test

Retro Computing Forum about 12 months ago

I’ve checked some PDP-8 software and found WHATAMI. That checks what PDP hardware someone has. /0=UNKNOWN MODEL. /1=PDP-5. /2=PDP-8. ... [PDP-8/E, F, M, 8A-600 SERIES]. /11=KK8A …
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Kill The Bit - 1975 reflex video game without screen Altair 8800 , PDP-8, HP2116B, C64

Retro Computing Forum about 12 months ago

Searching for the Intersil Intercept I, I first found the Intercept Jr. on a German Retro site. Then I found there this game. Full source and video for PDP-8, also for HP2116B. The full octal code for Altair is: 000: 041 000 000 026 200 001 01 …