Projection Engineering, Volume 3, Issue 9 - Volume 4, Issue 91931 |
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Page 11
... Vacuum Tube Characteristics This tester , being primarily a piece of field equipment , uses the power sup- ply furnished by the sound installation for measurements of vacuum tube characteristics . Plugs are used to ob- tain power for tube ...
... Vacuum Tube Characteristics This tester , being primarily a piece of field equipment , uses the power sup- ply furnished by the sound installation for measurements of vacuum tube characteristics . Plugs are used to ob- tain power for tube ...
Page 20
... tube to the value that will give a five- division reading on the meter when there is no a - c . voltage applied to the input of the volume indicator . The volume indicator is really only a form of vacuum - tube voltmeter that was ...
... tube to the value that will give a five- division reading on the meter when there is no a - c . voltage applied to the input of the volume indicator . The volume indicator is really only a form of vacuum - tube voltmeter that was ...
Page 13
... tube ? By LINWOOD G. LESSIG * In this article Mr. Lessig presents an easily understood , sound technical explanation of the operation of vacuum tubes as used in radio and audio circuits . Output matching to loudspeaker By B. BROWN , B ...
... tube ? By LINWOOD G. LESSIG * In this article Mr. Lessig presents an easily understood , sound technical explanation of the operation of vacuum tubes as used in radio and audio circuits . Output matching to loudspeaker By B. BROWN , B ...
Contents
Projection | 3 |
Applicant Audit Bureau of Circulations | 2 |
TESTING EQUIPMENT FOR SOUND PROJECTION | 11 |
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Common terms and phrases
acoustic address system amperes amplifier Amplion aperture apparatus battery Bell blimp Blue Seal broadcast camera CAMERON carbon Chicago CHICAGO GEAR Cineglow circuit coil color Company condenser connected Corp Corporation decibels designed device disc Electric exciter lamp feet field filament film frequency grid horns impedance inches industry input installation Laboratories lens lenses light valve loudspeaker machine manufacturers ment meter microphone monitor motion picture motor mounted multicoupler noise ohms operation optical output panel photoelectric cell pickup plate current portable position potentiometer production PROJECTION ENGINEERING projectionist projector public-address RACON radio radiovision RCA Photophone rectifier reproducing resistance rheostat ribbon screen Selsyn sound equipment sound film Sound Pictures sound recording sound reproduction sound system sound track sound-on-film speaker speed sprocket standard studio supply switch synchronism talkie television theatre tion transformer tube ture turntable unit vacuum tube volt voltage wire