WillIn my collection of Kemitron Computer cards I have an OP-3 card. I have not investigated further but a cursory glance would suggest it is an output card with relay control.
Kemitron OP-3 Card
A project log for Kemitron Computer
As I collected parts for my Interak Computer project, I gained a few Kemitron Computer cards. But what is a Kemitron - could I build one?
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