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NUMERICAL INDEX
TFNo. 11-622
11-951
11-952
11-968
11-1069
11-1070
11-1071
11-1187
11-1188
11-1200
11-1219
11-1317
11-1342
Electricity and Magnetism — Part I: Elements of Electricity
Breakdown of molecule into atoms — Relation of proton and electron to electricity (14 min — 1942 — Film Reference).
Pole Line Construction — Part I : Erecting Telephone Poles
Procedure for mapping pole line route — Attaching cross arm — Digging holes — Erecting and facing poles — Tools used — Proper use and care of equipment (18 min — 1943 — Film Reference).
Pole Line Construction — Part II: Installation of Cross Arms
Cross arm characteristics — Attaching cross arm with pole on ground or in position — Multiple cross arms — Fixing transposition of brackets (9 min — 1943 — Film Reference).
Pole Line Construction — Part III: Installation of Special Cross Arms
Uses and manner of attaching buck and extension arms — The H fixture (13 min — 1943 — Film Reference).
Pole Line Construction — Part IV: Fundamentals of Guying
Side, head, pole to stub, and two or four-way storm guys to provide extra support for poles — Methods of installation — Operation of the guy rule (10 min — 1943 — Film Reference).
Pole Line Construction — Part V: Installation of Anchors
Installing expanding plate, cone, and improvised log anchors for pole line support (9 min — 1943 — Film Reference).
Pole Line Construction — Part VI: Installation of Guys
Eyebolt and wrap methods for installation of guys — Precautionary measures (10 min — 1943 — Film Reference).
Electricity and Magnetism— Part III: Voltaic Cell, Dry Cell, and
Storage Battery
Principles involved (18 min — 1943 — Film Reference). Frequency Meter SCR-211
Principles — Setting meter as standard for tuning radio receiver and transmitter to same frequency (18 min — 1943 — Film Reference).
Electricity and Magnetism— Part II: Ohm's Law
Elements of electricity — Source, transmission, and use of electrical energy — Composition of matter — Ohm's Law — Purpose and use of related meters (19 min — 1943 — Film Reference).
Electricity and Magnetism— Part IV: Charging Storage Batteries
Charging, care, and preparation of storage batteries — Constant voltage methods and modifications (16 min — 1943 — Film Reference).
Installation of Field Cable
Description, use, and capacity of spiral-four cable — Ground surface installation — Above ground — Plowing in with cable plow LC-61 (20 min — 1944 — Film Reference). Tuning Transmitters — Part I: Setting Frequency
Basic principles of setting frequency on field radio transmitters — Zero beat methods — Three types of standards — Frequency meter, built-in calibrator, and net control station — Crystal controlled transmitters (16 min — 1944 — Film Reference).
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