The use of a diac improves the performance of the two dimmers in the previous circuits. The circuit is from the same Radio Electronics magazine in an article that teaches how to use triacs.
This voltage inverter circuit is from a Radio Eklectronics from October 1965. It was used in...
This circuit uses a 100 kHz crystal, but nearby frequencies can be obtained with appropriate...
This circuit provides 70 W at 8 ohms and 100 W at 4 ohms. We found this amplifier in a 1992...