This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heatsinks. Current and voltage depend on the ICs used.
This 1992 circuit operates in the range of cordless phones used at the time. The circuit is based...
This different circuit uses a relay as an oscillator, whose frequency is determined by C1, and to...
This antenna or booster amplifier operates with signals from the midband (MW) range up to the VHF...