This circuit produces the sound of a motorcycle or an outboard motor. The frequency is adjusted in the pot. For supplies above 9 V the BD136 must be equipped with a small heat sink.
May 2016 - It can be obtained from Mouser Electronics new connectors Ultra-Fit ™ series from Nikex for...
This frequency-corrected 1 kHz circuit has a nearly perfect rectangular signal. The circuit is...
This circuit is from a 1986 Revista Española de Electrónica. It consists of an amplifier with...