View Full Version : Honeywell Hall Effect Switch

Piero Andreini
May 22nd, 2015, 12:21 PM
I recently bring back to life a Texas Instruments DS990 Model 1 but unluckily many keys are faulty.

It use the Honeywell Hall Effect Switches model 1A3S


Somebody can help me to find them or any solution to replace them with other switches or other sensors?