Suggested by Philips in a 1970 publication, this circuit uses components from that time. No information is given about the trip transformer.
This circuit is used to power small 12V drills used in the drilling of printed circuit boards and...
This circuit uses a not easy to find IC these days. The circuit sources 15 W to a 4 ohm load and...
This sound effect for guitars uses a 555 to modulate the signal from an instgrument pick-up. The...