The purpose of this circuit is to measure the intensity of audio signals. We found it in the September 1990 issue of Radio Electronics magazine. The circuit works as a S meter.
This system makes use of incandescent lamps only and uses a SCR with a full wave bridge for powers...
This circuit was found in the July 1993 issue of Radio Electronics magazine. Based on an AD532, it...
This is the simplest function that triggers the load if the level of the input signal is 1. In...