Linear Scale Ohmmeter LF356 (CB25231E)

This interesting constant current source circuit was found in the September 1989 issue of Radio Electronics magazine. The power supply must be dual.

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a Wheatstone Bridge with Audio (CB25890E)
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Detector stage (CB20558E)
In the figure we have a typical detector stage for a radio receiver. The circuit is from 1963,...
250 kHz Adder Amplifier LM108 (CB3997E)
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