This analog meter circuit was found in the September 1989 issue of Radio Electronics magazine. The source must be dual, and the table gives the resistors for the various scales.
The purpose of this circuit is to find two resistors with very close values for critical...
This circuit produces a loud audio tone by a small loudspeaker. Power supply voltage ranges from 5...
With this circuit it is possible to divide the frequency of a rectangular signal by values between 2...