This circuit uses only transistors and was found in a 2003 documentation. Transistor 2N3055 must be mounted on a heat sink and the voltage is set to R10.
We found this circuit in the October 1987 issue of Radio Electronics magazine. The circuit uses...
This simple half-wave control using an SCR, which may be TIC106, has been obtained from a US...
This circuit was obtained in an old publication. The FET can also be the BF245. The potentiometers can be...