This circuit was found in a 1965 General Electric manual. It is intended for cars that have negative ground. At the time there were vehicles with positive mass.
This oscillator uses a ceramic resonator to determine the frequency. This kind of element is found...
We found this circuit in a Popular Electronics of the 80s. Used integrated circuits are uncommon...
This pulse width-tuned circuit was found in the March 1996 issue of Electronics Now magazine. The...