This circuit allows the use of an electret microphone with a 1.5 V source. We found it in the Encyclopedia of Electronic Circuits volume 5 from 1995.
This circuit is from a Japanese magazine of 1973. The circuit is designed to withdraw the power...
This circuit generates a signal rich in harmonics that extends up to close to 1 GHz, serving for...
This circuit is from an old publication, from 1992, being indicated to test the old joysticks of...