We found this transistorized circuit in a 1985 documentation. The circuit can operate with voltages from 9 to 12 V and the adjustment of the operating point or input sensitivity is done in P1.
This 1-transistor circuit appeared in a February 1962 Radio Electronics. The coils for the...
This circuit came out in the American magazine Electronics Now, in a 1993 issue. The magazine no...
This antenna tuner was found in a 1995 publication in the 1993 Electronics Hobbyists Handbook. The coil...