Instrument protection (CB8380E)

This is the conventional protection system for a low resistance analog instrument (millameter or microammeter). Diodes are general purpose.

Rocket Launcher (CB4447E)
This circuit, from a 1988 publication, consists of a timer that activates a relay at the end of a...
Opto control for triac (CB20552E)
Found a documentation for PC from 1992, this circuit is indicated for the English power grid of...
Window Comparator 741 (CB5076E)
This conventional window comparator configuration was found in an old documentation. It is valid...