Before nicer options were available, the only way to connect a P-ROC to Sys11 was to hook it into the MPU with a rats nest of wiring. This board was the guinea pig.
It's missing a few ICs but the spots all have sockets so could be replaced. A lot of other ICs got socketed during the experimentation phase too. Jumper wire on the back but I don't remember why that's there.
Generally no burns (heat marks on the back from those big resistors but that's normal, shows on photo) or corrosion so with a little work it could probably be brought back to life or be a source of spares.
Anyone want it for £30 including postage?
It's missing a few ICs but the spots all have sockets so could be replaced. A lot of other ICs got socketed during the experimentation phase too. Jumper wire on the back but I don't remember why that's there.
Generally no burns (heat marks on the back from those big resistors but that's normal, shows on photo) or corrosion so with a little work it could probably be brought back to life or be a source of spares.
Anyone want it for £30 including postage?