This circuit works as both an injector and a signal follower. We found it in the May 1994 issue of Electronics Now. The Z1 headphone must be high impedance.
This circuit, from an American publication of 1974, provides a 0.005% regulation with a variation of...
The purpose of this 1985 circuit is to make the sound test of type 106 SCRs (MCR106, TIC106,...
I found this simple basic circuit of rhythmic light in a 1980 documentation. We warn you to be...