Search found 46 matches

by MathematicalJ
02 Jan 2024, 15:43
Forum: Want to trade
Topic: [US-MA] NOS Microswitch SD Keyboard
Replies: 3
Views: 3583

Re: [US-MA] NOS Microswitch SD Keyboard

Beautiful! This is an old-ish post, apparently. Do you still have it?

I am actually trying to get rid of a lot of keyboard stuff. Maybe we can work out a win-win if I have anything you're interested in. I'll try to take photos of all my stuff today.
by MathematicalJ
28 Jul 2023, 21:22
Forum: Keyboards
Topic: Recreating the Lisp keyboard (10 years later)
Replies: 274
Views: 413165

Re: Recreating the Lisp keyboard (10 years later)

Gorgeous, my man. So good.
by MathematicalJ
20 Jun 2023, 08:22
Forum: Gallery
Topic: 1x1 Hi-Tek High Profile
Replies: 3
Views: 4018

Re: 1x1 Hi-Tek High Profile

Oh man, I need one of those! I got a much later model switch from eBay optimistically hoping I could swap the contacts out or something. Nope, completely different. I can't find anyone who is selling the waffle style switches.
by MathematicalJ
07 Jun 2023, 19:07
Forum: Keyboards
Topic: HP 98203C Nimetz Keyboard
Replies: 0
Views: 1520

HP 98203C Nimetz Keyboard

These HP 98203C Nimetz keyboards are really coming out of the woodwork on eBay lately. The HP Computer Museum describes them as "very rare," but it definitely seems like that's no longer the case, and they're relatively cheap, too. They are pretty interesting, though: Loads of keys, including weird ...
by MathematicalJ
03 Jun 2023, 07:21
Forum: Workshop
Topic: What are my options for repair of DEC VT100 / Hi-Tek High Profile contacts?
Replies: 1
Views: 3665

What are my options for repair of DEC VT100 / Hi-Tek High Profile contacts?

I have a DEC VT100 keyboard with a broken switch. Damaged Switch.jpg As you can see in the photo the metal contacts are damaged, but I have the spring and plastic slider (removed in the photo). The wiki has a lot of information about this family of switches and even describes how there "were provisi...
by MathematicalJ
28 May 2023, 20:16
Forum: Want to trade
Topic: unknown piece of keyboard for free
Replies: 6
Views: 3774

Re: unknown piece of keyboard for free

A Commodore PET! I love it. Are you in the US? If so, I would take it, convert it to USB, and build a beautiful enclosure. If I need to get rid of it, I would sell it only for cost of parts and shipping on DT.
by MathematicalJ
28 May 2023, 20:02
Forum: Keyboards
Topic: Cut Model F Cable
Replies: 16
Views: 2476

Re: Cut Model F Cable

I just happen to be dealing with the exact same situation as OP. Definitely try Soarer’s converter . …I ran it on an XT myself for many years. Highly recommended! The reason I opted against Soarer's converter is because it is closed source, hasn't been updated since 2013, and as far as I know the au...
by MathematicalJ
07 May 2023, 03:25
Forum: Workshop
Topic: Typewriter Mania
Replies: 15
Views: 10104

Re: Typewriter Mania

I really like these typewriter modules, too, though I wish interesting keycap profiles were more common on them. The only one I've acquired, though, is a nice little IBM Wheelwriter. It has been waiting for me to fabricate an enclosure and slap on a conversion module.
by MathematicalJ
07 May 2023, 03:14
Forum: Gallery
Topic: Is this the coolest direction pad ever?
Replies: 11
Views: 6896

Re: Is this the coolest direction pad ever?

TNT wrote:
02 May 2023, 13:07
What switches are in this one?
I don't actually know, but Elektronika tended to use magnetic reed switches.

The computer it came with looks pretty badass:

Image
by MathematicalJ
29 Apr 2023, 23:59
Forum: Off-topic
Topic: Version 100 of the MIT Lisp Machine software recovered
Replies: 1
Views: 3905

Version 100 of the MIT Lisp Machine software recovered

Symbolics/LMI fans will be interested in this article from The Register : The LM-3 project has announced version 100, the last ever release of the system software for the MIT CADR Lisp Machine. So, both a new release and a very old one all at once. News of this release came yesterday in a LinkedIn p...
by MathematicalJ
29 Apr 2023, 07:15
Forum: Gallery
Topic: A few vintage things
Replies: 7
Views: 6668

Re: A few vintage things

How cool is that?! Those kits look super fun.
by MathematicalJ
13 Apr 2023, 04:53
Forum: Gallery
Topic: Is this the coolest direction pad ever?
Replies: 11
Views: 6896

Is this the coolest direction pad ever?

This old Russian Elektronika DVK-2M keyboard from 1989 has the coolest direction pad I have ever seen. https://i.imgur.com/lpSNsqD.png In addition to the usual up, down, left, right, there is also up and slightly left, around the corner to the left, down dot, down-left and away, a couple of double-l...
by MathematicalJ
23 Mar 2023, 00:02
Forum: Keyboards
Topic: Recreating the Lisp keyboard (10 years later)
Replies: 274
Views: 413165

Re: Recreating the Lisp keyboard (10 years later)

Pornographic! A lot of lettering is done not with a digital font but with engraving machines. The George Gorton Machine Company dominated the engraving space for decades, and consequently their flagship typeface is freakin' everywhere . Here's what it looks like: http://luc.devroye.org/fonts-80708.h...
by MathematicalJ
04 Mar 2023, 21:52
Forum: Keyboards
Topic: NOS Micro Switch SD Keyboard - 1981 - Burroughs RIII Keyboard
Replies: 14
Views: 2820

Re: NOS Micro Switch SD Keyboard - 1981 - Burroughs RIII Keyboard

This is a thing of beauty. I am definitely interested. I have some weird things I could trade if you still have it. I'll PM you.
by MathematicalJ
15 Feb 2023, 21:34
Forum: For sale
Topic: Three Micro Switch (Hall Effect switch) keyboards
Replies: 10
Views: 3450

Re: Three Micro Switch (Hall Effect switch) keyboards

Here you go: https://deskthority.net/viewtopic.php?f=62&p=465478#p465478 Thanks! It just occurred to me that it was your Flickr album of your Space Cadet that has been incredibly helpful to me. Thanks so much for putting that online! I'm not on this website often enough to keep track of usernames, ...
by MathematicalJ
13 Feb 2023, 01:04
Forum: For sale
Topic: Three Micro Switch (Hall Effect switch) keyboards
Replies: 10
Views: 3450

Re: Three Micro Switch (Hall Effect switch) keyboards

the same PCB part number and layout that the Space Cadet used yet it will never be an actual Space Cadet. I was just looking for your board yesterday and couldn't find it. A couple of these look like perfect project boards with so many missing keys and no cases, especially for something as cool as ...
by MathematicalJ
11 Feb 2023, 04:57
Forum: For sale
Topic: Three Micro Switch (Hall Effect switch) keyboards
Replies: 10
Views: 3450

Re: Three Micro Switch (Hall Effect switch) keyboards

The switch plate is the same as that on the Space Cadet. The PCB is very similar but not the same. In fact, the PCB can accommodate the same number of switches in the same locations as the Space Cadet's PCB. The connector also appears to be in the same place. I wouldn't be surprised if it was electr...
by MathematicalJ
01 Feb 2023, 17:51
Forum: Gallery
Topic: It's A Keyboard [KFNR standard and compact]
Replies: 5
Views: 5345

Re: It's A Keyboard [KFNR standard and compact]

Send it to Chyrosran22 to review just to piss him off.
by MathematicalJ
01 Feb 2023, 17:40
Forum: Workshop
Topic: Feasibility of building a Space Cadet using replica PCB?
Replies: 7
Views: 3874

Re: Feasibility of building a Space Cadet using replica PCB?

Sorry to be a contrarian but I feel that this project is a bit misguided. Procuring these switches is nearly impossible and chopping up a vintage board is heresy. I don't think this is contrarian. It's just a reasonable concern over the preservation of vintage equipment and helpful information abou...
by MathematicalJ
01 Feb 2023, 02:15
Forum: Workshop
Topic: Feasibility of building a Space Cadet using replica PCB?
Replies: 7
Views: 3874

Re: Feasibility of building a Space Cadet using replica PCB?

Subject: Feasibility of building a Space Cadet using replica PCB? According to the seller it is intended as a "drop in" replacement for the keyboard and is compatible with the original components. This got my layman mind working and curious weather it would be possible to use the pcb to not just re...
by MathematicalJ
12 Jul 2022, 17:49
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

Out of curiosity, what is your solution for the keycaps and the case? The key cap profiles are common Micro Switch key caps from the era, which happen to also be on a couple of other keyboards I have. I can resin cast the key caps. The Space Cadet was manufactured with at least three different encl...
by MathematicalJ
12 Jul 2022, 08:45
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

John Doe wrote:
12 Jul 2022, 08:20
I shared sth here one year before:viewtopic.php?f=2&t=25902&p=488830&hilit=262#p488830
Ah, yes, I understand what you are saying now. Do you have a better picture of the entire PCB? I can take a look and get back to you on your original post.
by MathematicalJ
12 Jul 2022, 07:43
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

At least some ppl would be interested in Consul 262.3 keyboard PCB… See also the 262.12 and 259.6 . There are presumably others using these Czech clones. My knowledge of the Tesla Consul keyboards comes from the following: the Tesla Consul 259.6 keyboard was recently featured on KBD News , and Telc...
by MathematicalJ
12 Jul 2022, 00:32
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

A bit off topic, but since I have your attention: Do you think there would be interest in other vintage keyboard PCBs I have reproduced? Except for the TARDIS keyboard , none of them are particularly famous, but they also have never been digitally reverse engineered as far as I am aware. Reverse eng...
by MathematicalJ
12 Jul 2022, 00:09
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

As it happens, I've a related Micro Switch keyboard I'm due to photograph again (it's been years) and map out for a potential controller upgrade . I have a pair of Maxi-Switch keyboard modules numbered 630107-02 that are similar in design to other Maxi-Switch keyboard PCBs. They use vintage linear ...
by MathematicalJ
11 Jul 2022, 23:48
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

About the 3-terminal OG sensors, as they're basically smth hard to get or get enough to complete the project, you may want some replacers. I tested few types before and I can sure you the modern sensors like A3144 could take over this part flawlessly, pad is bit thick so you need sand one side care...
by MathematicalJ
11 Jul 2022, 10:44
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

Re: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

Oh, you're right. When I didn't get a response after a couple of days, I stopped checking the post itself, but I guess I didn't have it set to notify me on replies. Apparently that option is turned off by default. Sorry about that. Thanks for responding anyway. I am having trouble understanding the ...
by MathematicalJ
11 Jul 2022, 04:41
Forum: Want to trade
Topic: [WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.
Replies: 14
Views: 8414

[WTT] Have first prototype replica Space Cadet keyboard PCB, want switches for it.

I have for trade my first prototype replica Space Cadet keyboard PCBs. This is the first anyone has attempted to replicate this famous keyboard electronically as far as I know. https://i.imgur.com/SuVXIZ0.jpeg https://i.imgur.com/tJIBGw4.jpeg https://i.imgur.com/y5PJQ5X.jpeg https://imgur.com/galler...

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