This circuit was found in the November 1992 issue of Radio Electronics magazine. The circuit has an amplification stage for the relay. The relay is rated at 12 V.
This circuit is from a 1991 publication. The integrated circuit used is an integrated radio from...
This receiver for listening to the TR-23 phone was manufactured in Japan in the 1960s. The circuit is...
Found on a 1965 Radio Electronics, this circuit fires a signal xenon lamp applied to the SCR from...