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.
Found in a 1970's Radio Electronics, this circuit uses a triac to switch loads on the AC network. This...
This circuit with the NE602 was found in the February 1997 Electronics Now magazine. The NE602...
We found this circuit in an article in Electronics Now magazine from November 1997. The circuit uses...