This 200 kHz oscillator was found on a 90's EDN. It consumes only 2.8 mW and has CMOS compatible output. CMOS power pins are not indicated.
This circuit with transistors was found in an old Japanese publication, translation of an American...
This 8 W amplifier with germanium transistors was found in a Japanese documentation from 1967. The...
This circuit of the 80's makes use of components of the time. The circuit is from an American...