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.
Sine signals are converted into square signals by this simple circuit. The maximum frequency is...
This triac circuit was taken from an article in the July 1970 Radio Electronics magazine. Note the...
This TTL circuit was found in an American documentation from the 80s. The components are common in the...