In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

Al Kossow aek at bitsavers.org
Fri Jul 10 11:48:32 CDT 2020


On 7/10/20 9:45 AM, Al Kossow via cctalk wrote:

> 4B3A is a non-multiplexed contact closure type which is extremely difficult to find.

Since it isn't very fancy, I wonder if you could make a new board with a modern Hall
effect sensor? You just need a contact closure.



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