This wireless infrared remote sound transmitter is from an article published in the August 1988 issue of Radio Electronics magazine. The circuit can be built using modern, higher-power LEDs.
This circuit was found in an old neon lamp applications publication. The relay must be in...
This circuit was found in a 2005 Linear Technology documentation. The circuit is based on LTC4213...
This circuit uses high voltage transistors to provide direct power from the 110 V power grid or a...