This circuit for musical instruments was found in a 90’s Elektor. The circuit still applies, as the components used can still be obtained with some ease.
This General Electric circuit was published in 1970. The LED is infrared and the voltage according...
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...
September 2016 - Mouser Electronics is providing the new LDO voltage regulators from...