This old automotive circuit was found in an August 1971 Radio Electronics magazine article. The transistor is a Darlington transistor rated for the wattage of the bulb.
Found in Popular Electronics from 1969, this circuit uses a neon lamp from the time that had...
This receiver was found in the Radio Electronics magazine of March 1953. It tunes to the medium wave...
The figure shows how to use the XR2206 to generate sinusoidal signals in a different way. The...