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.
For the 600 kHz range coil is formed by 35 turns of 28 AWG wire on a ferrite core with a diameter...
This circuit, found in a publication of the year 1968, uses a transformer to drive two power...
The circuit is from the 1990 Motorola Linear Databook. The circuit can be implemented with other...