Micro Switch 76SD5-3 / SD-16126

JP! · 14 Dec 2022, 00:01

What a looker! I could not pass this unique Micro Switch board. It seems that this keyboard was never used, let alone entirely finished back in 1982. The module itself just sits inside the case without any screws with just a bit of old newspaper to help keep things in place which doesn't do a great job. This case has some beefy screw posts with threaded brass inserts yet the metal plate doesn't come close to reaching. It seems that someone had started to retrofit this keyboard module into this case. The layout matches the case but likely the case was molded for a different module and they did not make a different mold for a Micro Switch board.

: 1.JPG (771.11 KiB) Viewed 10504 times

Spoiler:

Lalaland124 · 14 Dec 2022, 09:51

What a beauty

Microswitch never disappoints.

Muirium · 14 Dec 2022, 21:36

The period specific newspaper filling, the ghostly hand, the familiar yet badly matched case… and yet that fantastic PCB with glorious Futura even for resistors and some of the best linear switches, and double shot caps, ever made! It’s like a Pharaoh’s tomb. Right down to being sealed in a hurry and subsequently forgotten. Else you’d never find him, Tutankhamun!

Good luck bringing it back to life. The controller is the hard part. Needs a Rosetta Stone or greater minds than I’ve tapped.

JP! · 14 Dec 2022, 22:15

Muirium wrote: 14 Dec 2022, 21:36 Needs a Rosetta Stone or greater minds than I’ve tapped.

I guess I am a tomb robber

The Rosetta Stone

https://github.com/MMcM/parallel-ascii-kbd

Muirium · 14 Dec 2022, 22:26

Cool. Wonder if my SD-16604 could work with this? I’m not knowledgeable enough to even begin to know.

JP! · 14 Dec 2022, 22:38

Muirium wrote: 14 Dec 2022, 22:26 Cool. Wonder if my SD-16604 could work with this? I’m not knowledgeable enough to even begin to know.

Like this: viewtopic.php?t=25038

Spoiler:

Chyros · 27 Dec 2022, 18:55

Oof, that's quite the smexy-lookin' board

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Muirium · 28 Dec 2022, 16:14

Indeed! Some really sharp looking Micro Switch boards showing up here lately, damn nice to see.

Thanks JP!, that’s a project for the new year.

digital_matthew · 28 Dec 2022, 21:08

JP! wrote: 14 Dec 2022, 00:01
It seems this keyboard might be haunted.
9.JPG

Lol I guess that's one way to hold down something while you paint it.