This 10 A solid state relay was found in a 1980s documentation. It can work as a shield and implemented with modern equivalent transistors.
This circuit must be powered by a symmetrical source and has a very high input impedance. The...
This circuit uses two diodes in a doubling configuration to receive medium-wave range signals. The...
This circuit serves to prevent devices powered by 6 V from being left with a power cut. The...