This circuit was found in documentation from the 1980s. The circuit uses several components of the time, which are uncommon today. We must not supply it with a transformerless power supply.
This circuit is for collectors. It is the circuit of one of the most popular transistor radios of the...
This circuit was found in the December 1991 issue of Radio Electronics magazine. The circuit is...
Found in a QST magazine from the 90s, this circuit broadcasts on different amateur radio bands...