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.
We found this circuit in an English publication from 1980. It provides a logical output signal when...
With the circuit shown, we have an excellent level for the signal obtained from an electret...
The circuit presented was found in a documentation from the 1950s, generating a sinusoidal signal...