We found this circuit in a 1997 documentation. It can be used in any common 12 V source and has two relays that disconnect the source in the event of a short circuit.
This circuit was found in a PC documentation from 1996. It can be used as a shield with modern...
This circuit measures the power of a transmitter being sandwiched between the antenna output and the...
This circuit was found in a 1968 Hughes documentation. The transistors are from that time. The coil...