Found in an EDN from the 90s, this circuit has a distortion of only 0.003%. Capacitors and double potentiometer determine the frequency.
This circuit is from an old 1967 publication. The circuit uses a programmable unijunction...
This simple rhythmic light circuit uses a 110 V to 220 V transformer and can hold a good number of...
The basis of this circuit is a National Semiconductor operational amplifier that functions as a...