This circuit was obtained from an American documentation from 1968. The current depends on the operational, observing that the circuit uses a symmetrical power supply.
The circuit presented is a simple MW tuner that can be plugged into the input of any audio...
This circuit is from an American 1967 documentation and can be implemented with modern equivalent...
This RF circuit measures transmission power from 0.25 W to 10 W. The maximum frequency depends on...