Found in a 90s Electronic Engineering, this circuit generates sinusoidal signals that depend on the capacitors. The potentiometer adjusts the generated signal symmetry.
This circuit, found in an old publication, uses operational amplifiers from National Semiconductor that are...
This circuit is from a 90s Popular Electronics. It consists of a power source for bass amplifiers...
September 2016 - It can be purchased from Mouser Electronics the new antenna tuning circuit from...