This circuit for the 1750 m band was published in the September 1989 Radio Electronics magazine. The range depends on the antenna system and receiver used.
This circuit can supply a voltage of 50 V up to 25mA or 250V with up to 120 mA at a regulation rate of...
Scratch and Rumble are noises that appear when recovering vinyl recordings, both due to scratches on...
This circuit is from an old French publication. With it we can have full wave control of a charge...