Found in American documentation from the 90s, this circuit keeps the high beam on for a time determined by the trimpot adjustment. The relay is sensitive 12 V.
This voltage regulator for automotive use was found in a Radio Electronics from the 80s. The Q3...
This instrument was found in a publication for radio amateurs in 1973. The tuned circuit consists of...
This circuit is found in a 2005 Linear Technology application manual. The circuit monitors the High...