This circuit was found in a 1964 Electronic Design. The transistor may be a current equivalent of general use. The frequency ranges from 100 to 150 Hz.
This traditional LED sequencer circuit was found in the February 1992 Radio Electronics magazine. The...
The basic idea of this circuit is to indicate the tolerance of a capacitor by reference to a...
September 2016 – At Mouser Electronics is available audio drivers for the purpose of suitable...