Found in a 300 Circuits from the 90s, this circuit can deliver a maximum current of 50 mA. The output is 20 V with a 12 V input.
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...