This 3-component circuit uses an analog indicator. We found it in an old publication.
TR1 must be mounted on a heatsink in this circuit. Voltage output is 8.6 V but this value can be...
This circuit can be used in the car to control the windscreen wipper or with other appliances at...
This simple injector circuit can actually be powered by voltages from 3 to 9 V. The frequency is...
