This 6-transistor circuit had excellent sensitivity using germanium transistors. The push-pull stage used two transformers, one drive and one output as we usually find at the time.
This 13.8 V power supply with 10 A output is intended to supply power to automotive power...
With the circuit shown in the figure, we have a logic signal to activate a calling device when...
We found this circuit in an American documentation from the 90's. The circuit can be assembled with a...