True RMS Voltmeter (CB25353E)

This circuit is from a Radio Electronics magazine from August 1990. The indicator module is of a common type at the time.

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Extended range power control (CB7935E)
This circuit was found in a General Electric documentation from 1965. The circuit is full wave for...
Null Detector (CB11550E)
We found this circuit in the Texas Instruments' Linear Circuits Applications. It uses an...
Operational Variable Astable (CB14827E)
In the presented circuit it is possible to vary the frequency of the rectangular signal produced. This...