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 simple alarm with latching uses a relay as the main element. The circuit is from a Radio...
This circuit was obtained from a Poptronics in June 2001. The magazine no longer exists, but the...
This circuit was obtained from a datasheet from Linear Technology. The circuit converts the...