Search found 172 matches

by MMcM
21 Jan 2021, 03:43
Forum: Workshop
Topic: ADDS Viewpoint A2
Replies: 2
Views: 320

Re: ADDS Viewpoint A2

I'm not sure. And the photos in Terminals Wiki weren't captured by the Wayback Machine before they went offline.

https://web.archive.org/web/20180811084 ... ewpoint_A2
by MMcM
19 Jan 2021, 06:10
Forum: Workshop
Topic: ADDS Viewpoint A2
Replies: 2
Views: 320

ADDS Viewpoint A2

When I saw this keyboard listed, I hesitated. ADDS-Viewpoint-case.jpg ADDS-Viewpoint-back.jpg First, it's a little beat up. Both the keycaps and the case, which is also plastic, have some gouges. And it looks like someone started to deal with the rather annoyingly high barrier between the typewriter...
by MMcM
17 Jan 2021, 20:00
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

I have a hp 46010a with fls switches, but never came across 46020a, mind to share a photo of the kbd showing this? HP-46010A HP-46010A-top.jpg HP-46010A-bottom.jpg HP-46020A HP-46020A-top.jpg HP-46020A-bottom.jpg In the case, they are practically indistinguishable, save for the connector(s). ♪ From...
by MMcM
16 Jan 2021, 22:33
Forum: Keyboards
Topic: Micro Switch 58SW5-9
Replies: 3
Views: 310

Re: Micro Switch 58SW5-9

John Doe wrote:
16 Jan 2021, 05:51
there's no rows&cols conception like common contact switches working mechanism
Many SW series boards and some early SD series are "two-of-n."
by MMcM
16 Jan 2021, 07:33
Forum: Keyboards
Topic: Recreating the Lisp keyboard (10 years later)
Replies: 28
Views: 1606

Re: Recreating the Lisp keyboard (10 years later)

This is amazing. I see how much work went into the black keycaps, but is there any thought of adding legends to the gray ones, too? Getting back blockhead, bubblehead and pinhead would be fun, though maybe useless. But a large RUB OUT and a small CAPS LOCK makes a statement even today. Not a deal-br...
by MMcM
11 Jan 2021, 03:53
Forum: Workshop
Topic: Osborne keyboard and KMK
Replies: 2
Views: 316

Re: Osborne keyboard and KMK

What about smaller boards? From time to time I pick up these button sub-assemblies with interesting key switches. They aren't keyboards, per se, but the same approaches ought to be able to make them into macro pads. (Perhaps even usably so if I could manage 3D printing.) Here are some old Micro Swit...
by MMcM
11 Jan 2021, 03:46
Forum: Workshop
Topic: Osborne keyboard and KMK
Replies: 2
Views: 316

Osborne keyboard and KMK

Back in the before-times (last year), there was a discussion of keyboard firmware systems and CircuitPython came up. In the meantime, there are mechanical keyboard kits available that use CircuitPython and the KMK project to define a QMK-like library for them. Now, these libraries aren't primarily d...
by MMcM
05 Jan 2021, 01:55
Forum: Gallery
Topic: [Datanetics DC-50] ABT Apple Keypad
Replies: 1
Views: 1886

Re: [Datanetics DC-50] ABT Apple Keypad

Is this perhaps The KeyPad Model A? I've only seen Model B ones like in the wiki . They connect via a 9-pin d-sub that you solder onto the TKC encoder board. Apple-II-encoder-mods.jpg (This one also has the lowercase switch that one can also solder on after cutting some traces.) But the one here loo...
by MMcM
02 Jan 2021, 09:46
Forum: Workshop
Topic: Tektronix 4120
Replies: 5
Views: 776

Re: Tektronix 4120

compu85 wrote:
01 Jan 2021, 21:52
Could you post the firmware from the original controller?
Here.
by MMcM
02 Jan 2021, 01:53
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

by MMcM
31 Dec 2020, 03:19
Forum: Keyboards
Topic: Soviet Model F clone with capacitive buckling springs
Replies: 49
Views: 5959

Re: Soviet Model F clone with capacitive buckling springs

Believe it or not, the missing cable goes to DIN-5, but implementing the LK201 protocol and not the XT one.
elektronika-ms-7004-cable.jpg
elektronika-ms-7004-cable.jpg (1.38 MiB) Viewed 445 times
More here.
by MMcM
31 Dec 2020, 03:16
Forum: Workshop
Topic: Convergent Technologies and Negative Serial
Replies: 8
Views: 1272

Re: Convergent Technologies and Negative Serial

Due to the recently discovered space constraint with a Teensy LC, I decided to remake the 3V LK201 converter with a Teensy 3.2 and make sure that works. And, indeed, a small adjustment was needed in the initialization timing. I believe that the faster clock and transmit FIFO meant that it could send...
by MMcM
28 Dec 2020, 04:51
Forum: Workshop
Topic: Convergent Technologies and Negative Serial
Replies: 8
Views: 1272

Re: Convergent Technologies and Negative Serial

How to test this mouse support? I don't have an SGI serial mouse. And the ones for sale right now are all the newer PS/2 kind. I also don't make a specific effort to collect mice, though sometimes they come with a keyboard, like a non-ADB NeXT. Or are needed for a project like the HP-HIL converter. ...
by MMcM
28 Dec 2020, 04:00
Forum: Workshop
Topic: Convergent Technologies and Negative Serial
Replies: 8
Views: 1272

Re: Convergent Technologies and Negative Serial

More fun with UARTs and voltages. A Silicon Graphics keyboard from 1991. SGI-case.jpg Other than the four extra LEDs, it's a by-then standard PC layout. The base is steel and the cable quite hefty, if cracking a bit, ending in a DA-15 d-sub connector with a solid metal case. SGI-back.jpg The switche...
by MMcM
27 Dec 2020, 06:12
Forum: Workshop
Topic: Alps / Genovation KPX-17
Replies: 11
Views: 1009

Re: Alps / Genovation KPX-17

The mouse protocol says to ignore the high bit in the serial data and this keyboard sets it most of (all?) the time. Evidently the mouse used with the code that's there didn't, so a patch was needed to mask that off. That's what you need to do when reading 8 data bits with 1 stop bit. But the proto...
by MMcM
25 Dec 2020, 03:34
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

Kroy 80K. Cherry foam and foil.

https://www.ebay.com/itm/193820471560
by MMcM
24 Dec 2020, 23:15
Forum: Workshop
Topic: Honeywell terminal ASCII keyboard
Replies: 0
Views: 261

Honeywell terminal ASCII keyboard

A Honeywell keyboard from 1982 with SD-series switches. Honeywell-BKBD-case.jpg Similar or identical to just the keyboard in this topic from earlier this year. The label on the back says BKBDUSWA-002 PR. Honeywell-BKBD-back.jpg I am not certain how to parse that. KBD might be keyboard and US the key...
by MMcM
20 Dec 2020, 21:51
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

As for the logo there were definitely variations since the one rayndalf recieved had gold lettering and mine was unpainted, but mine also had pencil markings filling all the letters probably from some bored kid studying in 1988, so that may also be why the a was filled on yours. Looking more closel...
by MMcM
20 Dec 2020, 21:49
Forum: Workshop
Topic: Geac 8340
Replies: 17
Views: 1162

Geac 8340

A library's worth of Geac 8000 series Public Enquiry Terminal (PET) keyboards showed up on eBay recently for a reasonable price. Geac-case.jpg I suspect that they are all the same model, but the one I snagged is 8340-01. Geac-back.jpg The keys are strikingly orange, so this must have been near a sun...
by MMcM
14 Dec 2020, 06:48
Forum: Workshop
Topic: Maxi-Switch 216004 ASCII keyboard
Replies: 2
Views: 270

Maxi-Switch 216004 ASCII keyboard

This keyboard was sold as a wooden-cased creation from the early hobbyist computer days. Maxi-Switch-216004-case.jpg Which means that the seller had a somewhat inflated idea of its worth. Though not as bad as the one asking 35 G's for a Hi-Tek grid missing two keycaps because it resembles part of a ...
by MMcM
13 Dec 2020, 20:39
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

https://www.ebay.com/itm/Vintage-GEAC-library-computer-keyboard-with-Hi-Tek-HITEK-switches-/193720375622 Offered $35, free shipping and the seller took it. Took a bit of time to ship, but came in a massive box with tons of bubblewrap. Followed your lead and offered 35, shipped pretty quick but with...
by MMcM
10 Dec 2020, 04:39
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

Univac 1710 with Micro Switch micro-switch switches

https://www.ebay.com/itm/333820109454

Cherry B80 ASCII keyboard with M7s

https://www.ebay.com/itm/333820104854

(same seller)
by MMcM
07 Dec 2020, 22:28
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

John Doe wrote:
07 Dec 2020, 16:05
https://www.ebay.com/itm/363203254730

Should be Micro Switch kbd but with host?
Yeah, keys look the same as https://www.ebay.com/itm/313320230137 from up above, so some of them may be triple-shot.

ETA: Apparently, the next step of completeness would be a desk.
by MMcM
07 Dec 2020, 06:56
Forum: Workshop
Topic: Convergent Technologies and Negative Serial
Replies: 8
Views: 1272

Re: Convergent Technologies and Negative Serial

The Sun keyboards were like that, too. The easiest way to deal with it is just bit-bang the serial protocol; it's only 1200 baud. That's what the QMK converter does. But it seems unsatisfying to waste the MCU's UART. Second choice is add an inverter. That's what I did with my Sun keyboards some yea...
by MMcM
07 Dec 2020, 06:45
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

... I hope these keys are obtained by a Deskthoritarian: ... ... I hope a typewriter collector gets it. ... You're both in luck. We got it, or will once we figure out the no-contact pick-up / delivery. It goes into the typewriter collection: mostly much older manuals, but with a few electric except...
by MMcM
07 Dec 2020, 03:49
Forum: Workshop
Topic: TeleVideo TS 800A (etc.)
Replies: 1
Views: 303

Re: TeleVideo TS 800A (etc.)

Safer version with a small resistor.
TeleVideo-TS800-Atto.jpg
TeleVideo-TS800-Atto.jpg (141 KiB) Viewed 234 times
by MMcM
06 Dec 2020, 21:52
Forum: Workshop
Topic: Cortron (ITW) 55-500216
Replies: 5
Views: 668

Re: Cortron (ITW) 55-500216

I finally got a chance to check out the newer board. CPT-side-by-side.jpg Under any other circumstances, it would count as huge. It's still not exactly small next to its older sibling, but definitely not as much of a monster. The PCB is more or less identical. Cortron-55-500582.jpg Cortron-80-551646...
by MMcM
05 Dec 2020, 23:15
Forum: Workshop
Topic: TeleVideo TS 800A (etc.)
Replies: 1
Views: 303

TeleVideo TS 800A (etc.)

This keyboard is from a TeleVideo TS 800A microcomputer from the early '80s. TeleVideo-TS800-case.jpg TeleVideo-TS800-back.jpg As far as I can tell, the keyboard itself is identical, outside the badge, to the TeleVideo 950 terminal keyboard in the wiki . The double-shot keycaps are divided into two ...
by MMcM
04 Dec 2020, 22:44
Forum: Other external
Topic: Great/Interesting Finds
Replies: 24364
Views: 2217551

Re: Great/Interesting Finds

Rayndalf wrote:
04 Dec 2020, 21:49
Converting it is the part I'm scared of.
https://www.manualslib.com/manual/47640 ... =34#manual

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