Replacing the Flyback Transformer From My VAXmate

I am about as certain as I can be that the flyback transformer from my VAXmate monitor board has failed. I know this is probably impossible, but I am wondering if there is a way to find a more modern equivalent? How standardised are these things? I do see a lot that appear to have the same circular

Re: Replacing the Flyback Transformer From My VAXmate

Rob Jarratt via cctalk wrote: > I am about as certain as I can be that the flyback transformer from my > VAXmate monitor board has failed. I know this is probably impossible, but I > am wondering if there is a way to find a more modern equivalent? How > standardised are these things? I do see a lo

Looking for IBM OS/VS2 TCAM Programmer's manual.

Preferably OS/VS2 TCAM System Programmer's Guide TCAM Level 10. GC30-2051 but I think it is similar to OS/VS2 TCAM Programmer's Guide, GC30-2041. I get a hit for the former one: http://www.computinghistory.org.uk/det/9844/OS-VS-TCAM-Progarmmer-s-Guide-TCAM-Level-10/ But it is not online. Any one

OSI floppy test program

I and others were having some problems with our floppy drives. Since I couldn't find a diagnostic program for the Ohio Scientific I wrote one. http://www.pdp8online.com/osi/osi-floppy-test.shtml With some floppy testing info here http://www.pdp8online.com/osi/floppy-repair.shtml If you try it l

RE: Looking for IBM OS/VS2 TCAM Programmer's manual.

Mattis. If you can't get a copy, the guys at Cambridge will usually scan it for you for a donation. Not sure if that’s possible at present. They don't receive any government funding and do need the cash Dave > -Original Message- > From: cctalk On Behalf Of Mattis Lind via > cctalk > Sen

LK201 emulation

Gentlepeople, I've been having problems with broken LK201s, so as a workaround I created an adapter that connects to a standard PC USB keyboard and makes it look like an LK201. It's based on an Arduino (specifically, Adafruit Trinket M0, an amazingly tiny yet powerful small microprocessor). I

Re: LK201 emulation

On 2020-05-17 17:13, Paul Koning via cctalk wrote: > Gentlepeople, > > I've been having problems with broken LK201s, so as a workaround I created an > adapter that connects to a standard PC USB keyboard and makes it look like an > LK201. It's based on an Arduino (specifically, Adafruit Trinket

Re: LK201 emulation

On Sun, May 17, 2020 at 5:13 PM Paul Koning via cctalk wrote: > I've been having problems with broken LK201s, so as a workaround I created an > adapter that connects to a standard PC USB keyboard and makes it look like an > LK201 > > Question to the list: is this something that would be of inter

RE: LK201 emulation

Well there is never any harm in publishing this kind of work! > -Original Message- > From: cctalk On Behalf Of Paul Koning via > cctalk > Sent: 17 May 2020 22:13 > To: cctalk@classiccmp.org > Subject: LK201 emulation > > Gentlepeople, > > I've been having problems with broken LK201s, s

Re: LK201 emulation

Hi Paul, I'm interested and would be happy to get a batch of boards done (at least 20 to get the per board price down). They'd be bare boards though so people would have to source their own parts and build them themselves. Thanks, Todd On 5/17/2020 5:13 PM, Paul Koning via cctalk wrote:

Re: LK201 emulation

On Sun, 17 May 2020, emanuel stiebler via cctalk wrote: > Actually, would even like the other way around too, connecting a working > lk201 to a pc ... ( so the terminal emulation works nicer) Well, you just need a serial port adapter + power. See also:

Re: LK201 emulation

On Sun, May 17, 2020 at 3:13 PM Paul Koning via cctalk < cctalk@classiccmp.org> wrote: > Gentlepeople, > > I've been having problems with broken LK201s, so as a workaround I created > an adapter that connects to a standard PC USB keyboard and makes it look > like an LK201. It's based on an Arduin

Re: LK201 emulation

On 2020-05-17 17:13, Paul Koning via cctalk wrote: Gentlepeople, I've been having problems with broken LK201s, so as a workaround I created an adapter that connects to a standard PC USB keyboard and makes it look like an LK201. It's based on an Arduino (specifically, Adafruit Trinket M0, a

Re: LK201 emulation

Paul -- I'm very interested in this. I'd love a USB keyboard adapter that acts like an LK201. If anyone wants a PS/2 keyboard adapter that emulates an LK201, there's Peter Bosch's Arduino Nano based lk201emu: https://github.com/peterbjornx/lk201emu His writeup on this is still in the Wayback Ma