This circuit was obtained from the October 1977 Radio Electronics magazine. The meter is analog, and the maximum selected power is 100W.
The circuit shown in figure 6 provides a TTL logic signal at its output, when the LM3911...
This circuit uses one of the most traditional of the voltage regulating circuits, the 723. This...
This circuit of various uses on the bench was found in Radio Electronics magazine from January 1960....