For the past couple of years I’ve been working on two shields for programming very old EPROMs where hardware to program them is not readily available.
I’ve separated these into two different pages:
MCM68766/2704/2708 Programmer
More about that here.
1702A Programmer
More about this one here.
Both of these shields are mentioned in this YouTube video (focused on 1702A)
Posted in Vintage microcontrollers