Vintage Micro Switch Keyboard
Here is an example of a Micro Switch keyboard assembly. It is mounted in a makeshift housing that appears to have held a different keyboard in the past. After some Internet searches, it appears that this might be a keyboard with “hall effect” key switches that are highly acclaimed. More info here: https://en.wikipedia.org/wiki/Hall_effect_sensor
This one is from 1975 and I don’t know the original application but it is a very good feeling keyboard.
There’s some writing on the side of one of the switches — certainly the later generation of Micro Switch switches had the switch type printed on every switch, so I’m wondering if these might do, too?
Hi Daniel,
I’ve added a picture of one of the key switches with “1SW11” on the side. The rest of the key switches are not accessible without me taking apart the keyboard. Hope this helps.
Noted, thank you.
As a note, there should be one code per switch type. The dummy switches used to stabilise the two-unit keys should have a different code to the remainder of the switches (as is known to be the case with the better-known generation of these switches). Space bar might have a different switch again, if is has a heavier switch. (I don’t know if that was ever Micro Switch practice.)