An Amplifier Standardizing Aircraft Interphone Equipment

摘要

The amplifier described in this report was designed for interphone communication on all types of aircraft having from two to thirty-two stations. It was developed to replace models RL5, RL7, RL9, and RL24C, standardizing interphone equipment on all planes.nSufficient power is available to supply one hundred twenty-five milliwatts per headphone for thirty-two stations at low altitude, or two hundred fifty milliwatts per headphone for sixteen stations at altitudes above twenty thousand feet. Provision far a maximum of thirty-two sta­tions is more than ample for all existing planes and allows for future increases in installations. An automatic load compensating arrangement is featured along with flexibility in adaptation to large or small planes.