This 600-ohm output impedance circuit was found in a Radio Electronics from October 1963. The circuit uses PNP transistors of the time and is powered with a voltage of 12 V.
This micro AM radio will tune strong stations in the frequency range between 530 and 1,600 kHz....
This unijunction buzzer configuration appears in this section from many publications and sources. The...
This counterphase output step was obtained in a Japanese magazine of 1957, a time when the...