This circuit is a continuation of the previous one, serving as a protector against overloads in amplifiers. The circuit was published in an article in the magazine Radio Electronics in January 1985.
Suggested by an American documentation for 1969 neon lamps, this circuit provides SCR control with...
This circuit is designed to measure very weak currents, in the order of picoamperes. We found it...
The 709 integrated circuit is not common today. The circuit is from American technical...