This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time and the frequency is determined by the crystal. The circuit operates at voltages from 3 to 9 V.
With this circuit it is possible to control a fluorescent lamp with signals coming from an...
This Power supply sources from 500 to 1,000 mA according the transformar and was found in a...
This Motorola circuit, found in old documentation, keeps the voltage applied to a load by a triac...