The idea of this circuit found in a Radio Electronics from January 1966. The idea of the circuit is to improve the reception of audio signals, mainly telegraphy, working as a filter.
Suggested by the National Semiconductor in 1980s documentation, this circuit uses components from the...
This circuit appears elsewhere on this site. Although the 8038 is not an easily obtainable...
This xenon flasher version for the power grid is from an 80's EDN. The circuit uses a folder and a...