This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The maximum current is on the order of 1.3 A and the input voltage must not exceed 20 V.
This is the receiver for the previous transmitter, also using a transducer not very common in our...
Here we have a transceiver for the amateur radio range, which operates in the 40 m band (7 MHz),...
The integrated circuit used in this circuit is not very common, but an equivalent one can be...