The figure shows a circuit that shows how to control an optodiac to trigger a triac from the LM3914 gates. The circuit is from an Electronics Now issue from February 1998.
This few-watt amplifier was found in the August 1975 issue of Radio Electronics magazine. The...
This mini siren, found in a 2003 publication, powers a small piezoelectric transducer, but a...
This circuit is from a documentation from the 70s, but it can be assembled with a TIP32 transistor in an...