We found this circuit in the February 1987 issue of Radio Electronics magazine. It is based on an integrated RCA triac trigger available at the time. The circuit powers 4 incandescent lamps.
We found this trebble booster circuit in a 1990 documentation. The components are current, and the...
This circuit for the experimenter of the 60s allowed testing the most common transistors in the...
In this application we use an additional input circuit to enable the logic command with keys,...