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.
An excellent signal generator for the audio track was found in a 1983 documentation. Its complete...
This simple amplifier with transistors was obtained in a documentation of the 90's requiring a...
The sensor can be made using two bare wire or two screen with a piece of tisse between them. One...