This FM micro transmitter was found in an 80s spy book. The circuit can work with equivalent FETs and is powered by a voltage of 0.6 to 6 V. Details of the coil are given next to the diagram.
This electronic rheostat with SCR was found in the June 1964 Radio Electronics magazine. The SCR...
This circuit consists of a small inverter to light a low voltage neon lamp. The circuit is from a...
Unlike the CIR4620 circuit, the circuit shown in the figure operates by capacitance. This means...