This circuit was found in documentation from the 1980s. The circuit uses several components of the time, which are uncommon today. We must not supply it with a transformerless power supply.
The basic purpose of this circuit is to apply an audio signal to a video carrier for sound and...
We found this circuit in Motorola's Circuit Applications for the Triac 1971 manual. The circuit is for ½...
This circuit for medium and short-wave ranges, according to the transistor used, was obtained in...