This circuit was found in the August 1996 Electronics Now magazine. The circuit is based on an operational circuit whose type determines the gains and limits for the frequency.
A way to avoid the influence of ambient light, or even the action of external light sources on the...
We found this simple oscillator in a publication for radio amateurs in 1974. The transistor can be...
This circuit was found in the Radio Electronics magazine in an article about emitter-coupled...