Re: [cctalk] Replacing the Flyback Transformer From My VAXmate

2020-05-18 Thread Gregory Beat via cctalk
Rob - It has been 35+ years since I worked for an Apple dealer, during the Macintosh announcement (and Apple sales, service training). I no longer have any of those documents. The Apple Community is extensive, and a quick Google search turned up many comments about Flyback, Damping Diode, &

Re: [cctalk] Replacing the Flyback Transformer From My VAXmate

2020-05-18 Thread Gregory Beat via cctalk
Rob - A DEC Part Number would speed up your Part Search. Radwell, a surplus dealer in New Jersey, lists a DEC terminal Flyback Transformer. DEC Part number: 16-27975-01 (supposedly used in the DEC VT320 terminal)

[cctalk] Re: Replacing the Flyback Transformer From My VAXmate

2020-05-18 Thread Gregory Beat via cctalk
Tai-Ho (Taiwan) was the OEM supplier for flyback transformers used by Apple in the early Macintosh computers (1984+). Russell Industries (New York, USA) produced replacement flyback transformers for monitors and TVs, these appear on eBay and remaining TV repair supply houses. As noted, while

RE: [cctalk] Re: Replacing the Flyback Transformer From My VAXmate

2020-05-18 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctech On Behalf Of Gregory Beat via > cctech > Sent: 18 May 2020 20:08 > To: cct...@classiccmp.org > Subject: [cctalk] Re: Replacing the Flyback Transformer From My VAXmate > > Tai-Ho (Taiwan) was the OEM supplier for flyback transformers used by Apple >

Re: LK201 emulation

2020-05-18 Thread David Kuder via cctalk
If anyone is interested in taking over my PS/2 mouse to DEC mouse adapter (tested working on VAXStation, should also work on VT340+, etc) https://bitbucket.org/tinyscsi/decmouse/raw/fc73c57dce5926ac1ab9f0958ba82cf1e8cbe88e/DECMouse.ino You could implement both keyboard and mouse on one

Re: LK201 emulation

2020-05-18 Thread Lars Brinkhoff via cctalk
Sophie Haskins wrote: > A long term dream of mine is to build some sort of general-purpose box > that can make connections to arbitrary vintage computer > keyboard/mouse/video ports, and connect in to modern HDMI & USB > peripherals to make it easier to just pull a machine off the shelf and > get

Re: LK201 emulation

2020-05-18 Thread Ron Pool via cctalk
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 Machine: https://web.archive.org/web/20180703165508/https://peterbjornx.nl/vtkbd/ I can no longer

FTGH - Decstation 5000 plus many extras

2020-05-18 Thread Kevin Parker via cctalk
Lets have another go (but this time I have some pictures) Decstation 5000/125 – also houses a CD drive. Two expansion storage boxes – one has a tape drive and the other one has a floppy drive. Two very large and heavy RGB Digital monitors – one has both Digital and Sony branding on the back of

Re: LK201 emulation

2020-05-18 Thread Ethan Dicks via cctalk
On Mon, May 18, 2020 at 6:34 PM Steve Malikoff via cctalk wrote: > There is a project that seems to be going along the same idea, > http://www.kbdbabel.org/ Interesting starting point, but I tried to browse the code and it flashed up instructions for how to use cvs or rsync to pull the code

Re: LK201 emulation

2020-05-18 Thread Ethan Dicks via cctalk
On Mon, May 18, 2020 at 6:47 PM sales--- via cctalk wrote: > On 2020-05-18 17:34, Steve Malikoff via cctalk wrote: > > There is a project that seems to be going along the same idea, > > http://www.kbdbabel.org/ > > > > Steve. > > Except that I can tell you from experience that not all 4p4c

Re: LK201 emulation

2020-05-18 Thread sales--- via cctalk
On 2020-05-18 17:34, Steve Malikoff via cctalk wrote: Sophie said I would absolutely be interested in this - while I'd love to use original hardware where possible, it's not always easy to get peripherals at the same time as machines. A long term dream of mine is to build some sort of

Re: LK201 emulation

2020-05-18 Thread Steve Malikoff via cctalk
Sophie said > I would absolutely be interested in this - while I'd love to use original > hardware where possible, it's not always easy to get peripherals at the same > time as machines. A long term dream of mine is to build some sort of > general-purpose box that can make connections to

RE: LK201 emulation

2020-05-18 Thread Electronics Plus via cctalk
Readymade cables exist to allow Wyse and other terminal keyboards to work on USB. Would a reverse of this work? -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Warner Losh via cctalk Sent: Monday, May 18, 2020 4:48 PM To: Ethan Dicks; General

Re: LK201 emulation

2020-05-18 Thread Warner Losh via cctalk
On Mon, May 18, 2020 at 3:46 PM Ethan Dicks via cctalk < cctalk@classiccmp.org> wrote: > On Mon, May 18, 2020 at 5:28 PM Paul Koning via cctalk > wrote: > > What I was talking about is a way to use a PC USB keyboard in place of > an LK201, when your last remaining real LK201 has just failed.

Re: LK201 emulation

2020-05-18 Thread Ethan Dicks via cctalk
On Mon, May 18, 2020 at 5:28 PM Paul Koning via cctalk wrote: > What I was talking about is a way to use a PC USB keyboard in place of an > LK201, when your last remaining real LK201 has just failed. That involves a > USB jack, a LK201-compatible handset jack, some electronics, and software to

Re: LK201 emulation

2020-05-18 Thread Ethan Dicks via cctalk
On Mon, May 18, 2020 at 5:20 PM Electronics Plus via cctalk wrote: > Do you guys want original LK201s, or other keyboards that LOOK like LK201s > in the caps and layout, or converters? > I am a little confused... LK201 clones do not have the clip offset on the > terminal connector, so you would

Re: LK201 emulation

2020-05-18 Thread Peter Coghlan via cctalk
Paul Koning wrote: >> On May 18, 2020, at 9:09 AM, Peter Coghlan via cctalk >> wrote: >> >> ... >> I also find myself with several flakey LK201s. >> >> To be honest, I wouldn't be interested in replacing them with PC keyboards. >> I'd prefer to get my LK201s back in action. >> >> If the

Re: LK201 emulation

2020-05-18 Thread Paul Koning via cctalk
> On May 18, 2020, at 5:20 PM, Electronics Plus via cctalk > wrote: > > Do you guys want original LK201s, or other keyboards that LOOK like LK201s > in the caps and layout, or converters? > I am a little confused... LK201 clones do not have the clip offset on the > terminal connector, so

RE: LK201 emulation

2020-05-18 Thread Electronics Plus via cctalk
Do you guys want original LK201s, or other keyboards that LOOK like LK201s in the caps and layout, or converters? I am a little confused... LK201 clones do not have the clip offset on the terminal connector, so you would have to replace the connector. I have no idea if the protocol, voltage, etc

Re: LK201 emulation

2020-05-18 Thread Sophie Haskins via cctalk
I would absolutely be interested in this - while I'd love to use original hardware where possible, it's not always easy to get peripherals at the same time as machines. A long term dream of mine is to build some sort of general-purpose box that can make connections to arbitrary vintage computer

Re: LK201 emulation

2020-05-18 Thread Warner Losh via cctalk
On Mon, May 18, 2020 at 8:32 AM Paul Koning via cctalk < cctalk@classiccmp.org> wrote: > > However, if it turns out that the issues are in the electronics part of > the > > keyboard and they are not easily repairable for one reason or another, I > may > > be interested in a drop in replacement

RE: Evans & Sutherland PS-2?

2020-05-18 Thread markwgreen--- via cctalk
I have one, but no documentation I'm afraid. The last time I turned it on was 20 years ago. The last thing I remember is the fuse in the display blowing. I ordered replacements, but never got it going again. They take a lot of power, where mine is currently sitting I don't have the power to

Re: Evans & Sutherland PS-2?

2020-05-18 Thread Lars Brinkhoff via cctalk
Brad Parker wrote: > Does anyone have, or know of low level documentation for Evans & > Sutherland Picture System 2 hardware? Sorry, I can't help. Is there any software for it? I do consider making an emulator for the E LDS-1.

Evans & Sutherland PS-2?

2020-05-18 Thread Brad Parker via cctalk
Does anyone have, or know of low level documentation for Evans & Sutherland Picture System 2 hardware? I walk past a PS-2 monitor all the time and some of us started talking about bringing it back to life.  I'm not sure if more of the system exists, but it might.  I plan to check. I looked

Re: LK201 emulation

2020-05-18 Thread Paul Koning via cctalk
> On May 18, 2020, at 9:09 AM, Peter Coghlan via cctalk > wrote: > > ... > I also find myself with several flakey LK201s. > > To be honest, I wouldn't be interested in replacing them with PC keyboards. > I'd prefer to get my LK201s back in action. > > If the issues are in the keyswitches

Re: LK201 emulation

2020-05-18 Thread Peter Coghlan via cctalk
Paul Koning 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, > an amazingly tiny yet

Re: LK201 emulation

2020-05-18 Thread Lars Brinkhoff via cctalk
Paul Koning wrote: > Question to the list: is this something that would be of interest to > others? If yes, I can make the design available. Perhaps the PCB > layout and parts list. Yes, I'm interested. I also have a broken LK201, and I have a Trinket lying around.

Re: LK201 emulation

2020-05-18 Thread Ron Pool via cctalk
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