LM3914 with expanded scale (CB24652E)

This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The circuit shows how to change the LED drive values.

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Neon flashlight (CB21737E)
Found in Popular Electronics from 1969, this circuit uses a neon lamp from the time that had...
Single transistor receiver (CB22568E)
This receiver was found in the Radio Electronics magazine of March 1953. It tunes to the medium wave...
XR2206 sinusoidal generator with modified range (CB24497E)
The figure shows how to use the XR2206 to generate sinusoidal signals in a different way. The...