We found this circuit in the March 1995 issue of Electronics Now magazine. The circuit has a frequency range determined by C1 and R3. The signal generated is square.
Found in a 90s Popular Electronics, this circuit is based on a uA739, an unusual component today....
Exciting a sequential circuit with the output of a stereo we can make a set of lamps run at a...
This excellent amplifier with complementary symmetry output stage was taken from one of my audio...