This circuit was used in tape recorders to clear the tape of any previous recordings for a new recording. The circuit is from a Radio Electronics dated September 1982.
This circuit was obtained from a Radio & Electronics Constructor from March 1976. The magazine no...
This buffered version of the previous circuit appeared in an article in the September 1989 Radio...
This circuit was found in a 1968’s publication and uses germanium transistors. Equivalents can be...