. The design and construction of a radio telephone station . td The two binding posts situated at the rightof the panel are for phone connections and thoseat dtlieleft are for aerial and ground connectior. s. The telephone receivers employed withthis set are Western Electric Companys 3800ohm phone set. These phones are very light andsens it ive. 43 7« RESULTSThe primary ia first tuned by meansof the variable condenser across the primarycircuit, then the secondary is tuned by meansof its variable capacity until the maximumstrength of signals is obtained. Critical ad-justment of the detector and
. The design and construction of a radio telephone station . td The two binding posts situated at the rightof the panel are for phone connections and thoseat dtlieleft are for aerial and ground connectior. s. The telephone receivers employed withthis set are Western Electric Companys 3800ohm phone set. These phones are very light andsens it ive. 43 7« RESULTSThe primary ia first tuned by meansof the variable condenser across the primarycircuit, then the secondary is tuned by meansof its variable capacity until the maximumstrength of signals is obtained. Critical ad-justment of the detector and amplifiers is ob-tained by mani::ulating the plate voltage ofthe detector arid the filament currents of thedetector and amplifier tubes, A little practicewill tell whe^e the correct adjustment of thetubes is to be found. Filament ammeters are notnecessary because the sound in the phones is agood indicator of a too heavy filament the detector an excess current causes amplifier filament current should be as smallas it is possible to
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Keywords: ., bookcentury1900, bookdecade1920, bookiddesignconstr, bookyear1921
