View Profile: m_thompson - Vintage Computer Forum

Today, 06:18 AM

m_thompson replied to a thread RX01 floppy drive adventures in DEC

I can, but my completely original RX01 didn't come with a fan on the back.

39 replies | 1682 view(s)

February 22nd, 2021, 01:10 PM

m_thompson replied to a thread PDP-8 stuff saved from a scrapper in Utah, needs a good home. in DEC

And I could use the read/write heads.

13 replies | 903 view(s)

February 22nd, 2021, 12:29 PM

jackrubin replied to a thread PDP-8 stuff saved from a scrapper in Utah, needs a good home. in DEC

Tom, If it gets to the point where the RK05F is being scrapped, I'd like to get a handful of the quick-turn fasteners that hold the sheet metal...

13 replies | 903 view(s)

February 20th, 2021, 11:53 AM

m_thompson replied to a thread Wang LOCI-2 Calculator Restoration at the RICM in Other

The A Register in LOCI #2 had a stuck bit problem. If you cleared all of the registers and transferred the A register to the W display register it...

35 replies | 2191 view(s)

February 17th, 2021, 05:39 AM

m_thompson replied to a thread PDP-8 documentation archive? in DEC

Vince's PDP-8 site is: https://so-much-stuff.com/pdp8/index.php

4 replies | 169 view(s)

February 16th, 2021, 06:48 AM

MattisLind replied to a thread RX01 floppy drive adventures in DEC

Many (most?) 8 inch drive use an AC induction motor driving the spindle. It is directly connected to the AC input and is never stopped. This is true...

39 replies | 1682 view(s)

February 16th, 2021, 06:37 AM

MattisLind replied to a thread Digital GiGi VK100 colour graphics terminal in DEC

VT125 also does REGIS. It is essentially an extra 8085 based board that hooks in on the serial coms connector and listens to certain escape sequences...

12 replies | 426 view(s)

February 13th, 2021, 11:40 AM

jackrubin replied to a thread Teletype to linux in DEC

CuriousMarc did just that with his Model 15 (baudot) teletype; probably some useful information for the ASCII machines as well -...

12 replies | 347 view(s)

February 10th, 2021, 12:13 PM

MattisLind replied to a thread DEC MicroVax 2000 in DEC

I am interested in ROM contents for making a 2000 boot from SCSI. The instructions on patches for VMS would be great as well. I have a tiny little...

19 replies | 939 view(s)

February 9th, 2021, 05:50 AM

m_thompson replied to a thread What did I do to my PDP-8 today. in DEC

I made a modified OS/8 BOOT program that included the serialdisk bootloader. It added the option BOOT /SD. I should find the source code and send it...

209 replies | 14522 view(s)

February 2nd, 2021, 07:42 AM

m_thompson replied to a thread Ti-990 in Texas Instruments

The Rhode Island Computer Museum has two and spare boards, but we have never powered them on. ...

11 replies | 386 view(s)

January 31st, 2021, 07:12 AM

m_thompson replied to a thread Wang LOCI-2 Calculator Restoration at the RICM in Other

We cleaned all of the finger edge contacts and backplane connectors in the second LOCI with a white eraser and DeoxIT. It behaves much better now. ...

35 replies | 2191 view(s)

January 30th, 2021, 12:16 PM

jackrubin replied to a thread What did I do to my PDP-8 today. in DEC

I've seen 8/E panels with both soldered bulbs and socketed bulbs (not on the same panel) but I don't remember if there was any correspondence between...

209 replies | 14522 view(s)

January 30th, 2021, 12:10 PM

jackrubin replied to a thread Virtual DEC KEY REPOSITORY in DEC

I understand maintaining a stiff upper lip, but even for a Brit, a wooden jumper wood :) seem bit too much.

84 replies | 132685 view(s)

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