This circuit was found in a 90’s Popular Electronics. The power transistors must be equipped with radiators and the transformer has a 2 to 5 A secondary.
This circuit, suggested by an Electronics World of 1969, keeps a blinking LED for a while when a...
This is a Philips commercial circuit from the 90s. The integrated circuit must have a good heat...
This circuit converts a signal from any waveform into a rectangular or square signal of the same...