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.
Found in a 1960 Sylvania manual, this circuit can be implemented with a modern equivalent...
This configuration, already presented in other points of this section and website, is of a...
We found this precise crystal oscillator for the 144 MHz band, depending on the crystal used. The...