This circuit is one of many of its kind that can be found on this site. This one is from a September 1987 Radio Electronics. The triac must be controlled according to the load.
This useful circuit is used to test the insulation of cables, appliances, leaks in high voltage...
This class B circuit was found in the 1960 Mullard transistor reference manual. Transformers are...
This circuit is from the American magazine that no longer exists Science & Electronics,...