This 1968 circuit makes use of MOSFETs of the time. The circuit can be mounted based on modern common FETs. Observe the high supply voltage.
AEM's FM12 (QPL) series components are included in the latest edition of the European Space...
This receiver for listening to the TR-23 phone was manufactured in Japan in the 1960s. The circuit is...
This circuit was found in a Popular Electronics from the 90's. The circuit's waveforms are given,...