This circuit was found in the August 1997 Electronics Now magazine. The circuit uses well-known operational codes and generates signals up to 20 kHz.
This circuit was obtained from a Popular Electronics of 1994. The magazine no longer exists in its...
This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time...
This circuit can supply a voltage of 50 V up to 25mA or 250V with up to 120 mA at a regulation rate of...