Found in 90s Radio Electronics, this small transmitter has a good range. L1 is formed by 3 + 3 turns of wire 24 around a pencil as a reference.
16 commercial test circuit for tubes and transistors appeared in Radio Electronics magazine in...
Suggested by an American publication, this circuit has 5 operating conditions indicated in the...
This circuit with an integrated circuit of the time was found in the magazine Radio Electronics of April...