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

[Ian Finder]

Yeah Al, that's a great suggestion. I was looking at the AH1815 last night.
The challenge is getting the whole assembly as thin as the original, which
presents a not insignificant challenge-

Even using the SOT553 package of this:
https://cdn.sparkfun.com/assets/4/4/8/2/a/AH1815.pdf - I'd have to do some
trickery, like have it mount into a hole into the center of the board.



On Fri, Jul 10, 2020 at 11:06 AM Al Kossow via cctalk <cctalk at classiccmp.org>
wrote:

> 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.
>
>