Does anyone know of a modern substitute for the low voltage power supply diodes in the first generation Predicta sets (G4242L, G4654L and others)? They are listed on the schematic as M1 and M2 and carry a Philco part # 34-8047-2. If anyone could suggest a current ECG replacement, it would be greatly appreciated.

Thanks
John

1N4007 should do the trick.