The circuit is from 80s Siliconix documentation. The integrated circuit is from the company and is not common today. It can be used operational equivalent more common in our times.
This circuit was found in old publication from 1958. The circuit uses germanium transistor, common in...
This configuration based on a conventional astable multivibrator was found in a 1982 publication. The...
This circuit was found in the May 1989 issue of Radio Electronics magazine. The circuit requires a...