This circuit is suggested by National Semiconductor in its Linear Applications Handbook. The LM3909 integrated circuit consists of a very low consumption oscillator with a power supply of 1.2 V.
The integrated circuit used in this application is a double 741 from SGS. The supply must be...
This well-known configuration of the guitar effects pedal was obtained in an English magazine from...
This detector uses an unusual sensor today. The circuit is from an 80s documentation. Its...