This circuit was found in an American documentation from 1969. The circuit is a multi-indicator with resistors typically 47 k for R1 and 100 k for the others.
This circuit was found in a 90s Popular Electronics. It prevents the power from being switched...
Obtained in documentation from General Electric this circuit consists of a biestable with...
This hybrid audio amplifier from National Semiconductor was found in the June 1994 issue of...