This circuit generates a linear sawtooth signal. The circuit was found in the December 1992 issue of Radio Electronics magazine. The maximum frequency is around 200 kHz
This circuit was found in 80's Popular Electronics. The circuit uses an infrared-sensitive phototransistor...
Supplied in a 2005 Linear Technology Application Manual, this circuit monitors the charge and...
We found this circuit in an American 1980s documentation. Transistors may be general purpose...