The purpose of this circuit is to limit the noise of an audio signal. Diodes are made of germanium. The circuit is from an old American manual.
This sound effect circuit is from a Radio Electronics magazine from December 1969. The transistors...
This few-watt amplifier was found in the August 1975 issue of Radio Electronics magazine. The...
We found this simple test of zener diodes in a 1978 publication. The potentiometer can be...