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What does anyone know about the Maxi-Switch keyboard for the TRS-80? So far we only have one photo from mbbrutman showing a switch identical in principle to the Alps KEH Series switches used in some other TRS-80 models. Specifically, a discrete switch containing a rubber dome with a conductive...

I’d like to talk to Mike Stephens of Mil-Key, who I understand worked for Key Tronic and knows their old keyboards well. Mil-Key appears to have closed in 2012. Does anyone have a contact for him now? The e-mail address for Mil-Key is defunct (ends up in a loop). I do realise that he’s on...

There is a photo here of an elastic contact switch supposedly made by the Maxi-Switch Co. that seems to be a derivative of Alps KEH series: Model 4 membrane keyboard - anyone know how to fix it ? If anyone ever finds a reason to open up an early Model 4, I would like to know what part number...

This is beyond a shot in the dark … the discrete switch keyboard for the AIM 65 is one of the few keyboards that uses “sealed linear” Futaba switches. This is the one last series where the series designator (not necessarily the name) is still unknown. Things it won’t be are MA, MD, ML and MR, as...