This circuit for signals up to 30 MHz can improve your reception in the medium and short-wave band. We found it in the Radio Electronics magazine of February 1989.
This circuit is from a March 1978 Radio Electronics magazine article that showed how to build it....
Using a Motorola MC1684 integrated circuit this 1968 amplifier provides 1 W to a 8 ohm load. The...
This circuit generates signals in the range of 50 kHz to 1 MHz with a rectangular waveform. The...