This circuit was found in documentation from the 1980s. Transistors are general-purpose types like the BC548 for NPN and the BC558 for PNP.
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...
The idea of this circuit is that when the device in SO1 is turned on, the device connected to...
This transistorized receiver was manufactured in the 1960s and distributed worldwide. The diagram is...