This 1-transistor circuit for currents up to 50 mA was found in the August 1974 Radio Electronics magazine. The transformer is 50 to 200 mA.
This circuit was found in the September 1996 issue of Electronics Now magazine. The sound provided has...
This circuit generates sawtooth signals whose frequencies depend on the values of the selected...
We found this circuit in a 1967 Electronic design. However, it can be easily implemented even...