This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The configuration was found in the 1982 SGS linear integrated circuit manual.
This is the project found in a 1981 publication, but it is still viable. It is a simple AM...
This 2-quadrant modulator circuit was found in the May 1988 issue of Radio Electronics magazine. The...
Found in Radio Electronics from May 1959, this transistor tester is quite sophisticated. The...