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.

| Clique na imagem para ampliar |

Non-Inverting Gain 100 Amplifier 741 (CB16755E)
We found this common application of the 741 operational amplifier in a 1977 documentation. The...
Electronic Fuse (CB15845E)
This circuit, found in an old 1967 publication, cuts the current from a source when the current...
LM3914 with expanded scale (CB24652E)
This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The...