Principles of radio. Part 3. The Vacuum tube
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Explains by animated drawings, the operation of a radio vacuum tube in terms of its filament, plate, and grid circuits. Illustrates the three functions of the vacuum tube in radio: how it serves as an amplifier to operate the loud-speaker, as a rectifier in detection, and as an oscillator to generate the carrier wave.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
Original permalink · Record added 2026-01-23 03:56:52