United States. National Advisory Committee for Aeronautics, United States. National Aeronautics and Space Administration · Washington : G.P.O. · leaf 697
ers is disagreeably loud and sharp. To make this sound dull and yet audible, a largercondenser is shunted across the pliones. Condensers of one-fourth, one-half, and 1 microfaradcapacity are found suited to a circuit which includes a 4.5 or 6 volt battery and a pair of 70 to80 ohm telephone… … Fig. 8.—Schematic diagram of indicator assembly. Pressure element, timer,pressure system and electrical circuits in their relation to an engine cylinder. CALIBRATION AND INSTALLATION. The sensitivity and zero reading of the pressure element should be checked occasionally.By the first is meant the…
Aeronautics
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