This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped with good heat sinks.
We found this circuit in a Radio Electronics from May 1966. The sensor is a photocell, and the...
By pressing and releasing S1 the relay closes its contacts for a time that depends on the value of the...
The correct connection of speakers and tweeters in a speaker to obtain better sound quality,...