Scale Expander for 12V Meter (CB21330E)

This circuit was found in a QST from the 1990s. The circuit expands the scale of a 10V instrument to measure 20V.

20 MHz Oscillator (CB8135E)
Found in a 1967 EEE, this circuit oscillates at 20 MHz according to the values of the given...
Servomotor Kit (COM150E)
November 2016 - Mouser Electronics is selling the Terasic Servomotor kit for the control of up to...
Insect Repellent (CB11831E)
This circuit is the traditional 555 oscillator that produces a hum in the piezoelectric...