This circuit was found in a Radio Electronics from February 1966. With it it is possible to trace the curve of a tunnel diode visualizing it on an oscilloscope.
Indicated for automotive use, this circuit was found in a Popular Electronics from the 90s. The...
January 2017 - Bourns' 100 mm motorized sliding pots can now be purchased from Mouser Electronics....
This old oscillator using germanium transistors has a high impedance headphone as inductor to...