Hi guys,
just received some new voice cards for my OB-SX, but they are probably from an earlier version and have the number 1434. My late blue stripe, 56 programs OB-SX has the 1434A cards installed. They have 5 instead of 4 pins on the lower connector.
Anyone wants to trade
No Curtis chips and don't need them on the 1434As :-)
I will look at the schematic and see what this one more pin actually does.
Best,
Thomas