This 6-transistor Japanese radio from the 1960s used germanium transistors and had an output power of 180 mW. The circuit is of the superheterodyne type with push-pull class B output.
Short duration pulses can be obtained with the relaxation oscillator that uses common transistors and is...
This circuit is from a Radio Electronics from August 1992. The transistor used allows the control of...
This circuit was found in a publication by National Semiconductor. The problem for designers who...