The frequency of this clock oscillator is given by the crystal. The trimmer sets the ideal starting point for oscillations.
Found in older Signetics documentation, this circuit generates signals from 30 Hz to 25 kHz....
This circuit trips a relay when it stops receiving a signal. The transistor is germanium. We found...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...