[vcf-midatlantic] Keyboard keyswitches wanted

[Herb Johnson]

A colleague of mine, is trying to repair his mid-1970's keyboard. He may 
well find old-stock unused keyswitches, but I'm betting not. They were 
likely made by MicroSwitch, owned at some point by Honeywell. They are 
Hall-effect. They have four pins, they need 5V power. This is not a 
common microcomputer.

Here's a link to deskthority.net, of what the keyswitches look like.

https://deskthority.net/wiki/Micro_Switch_SD_Series

specifically:

https://deskthority.net/wiki/File:2011-11-07_16.15.40.jpg

But there's lots of variations. No point in describing them further, 
most won't have these keyswitches. If you have something like this, and 
can unsolder several (and one for inspection), contact me directly and 
we'll go from there.

Herb Johnson
-- 
Herbert R. Johnson,  New Jersey USA
http://www.retrotechnology.com OR .net