This switched regulator configuration was found in Motorola's 1969 documentation. The integrated circuit is from that time and is difficult to obtain today.
This small signal injector generator was found in the February 1971 issue of Radio Electronics magazine....
This amplifier, found in a 1981 publication, provides 15 W lHF power with a supply voltage of 14.4...
This simple passage alarm is powered by the power grid using an LDR as a sensor. The circuit is...