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 is primarily intended for the calibration of common radio IF steps using the...
) This circuit is from a 1967 RCA SCR manual. The circuit uses components from the era that can be...
Found in a 1967 documentation, this infrared amplifier is intended for use in a Nipkow disc camera...