This circuit generates frequencies determined by R3 and C1. We found it in the Radio Electronics magazine of May 1988. The power supply must be symmetrical.
This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it...
This factory circuit appears elsewhere on this site. This is from a 1975 National technical...
This circuit was obtained in a March 1995 edition of the American magazine Electronics Now. The...