Speak-O-Phone Sound Detector, Model SDB
Publisher: Washington, D.C. : War Department, Washington : United States Government Printing Office, 1944
Published: 1944-09-27
Place of publication: Washington, D.C., USA
Language: eng
Table of contents: title: TABLE OF CONTENTS; title: SECTION I. Description. Paragraph Page; title: Purpose 1 1; title: General 2 2; title: List of components, weights and dimensions 3 3; title: II. Installation and operation.; title: Planting carbon microphone 4 4; title: Contact microphone 5 4; title: Direct telephone-line tap 6 5; title: Induction-coil telephone tap 7 5; title: III. Functioning of parts.; title: Amplifier input channels 8 6; title: Vacuum tubes 9 6; title: Output channels 10 7; title: Power supply 11 7; title: IV. Maintenance.; title: Service test 12 8; title: Removal of amplifier 13 8; title: Testing tubes 14 10; title: Voltage measurements 15 10; title: Voltage chart 16 10; title: Resistance measurements 17 11; title: V. Supplementary data.; title: Maintenance Parts List for Speak-O-Phone Sound Detector, Model SDB 18 12