[Compiled Johnson's Wireless College lesson papers]

Object detail

Accession number

04/001/008

Maker

Johnson's Wireless College
Leslie Ernest Birch

Description

Includes Johnson's Wireless School lesson papers: 35: principles of the electric filter -- 35A voltage doubling -- 36: The wave trap -- 37: The three electrode valve as a means of converting D.C. into A.C. -- 38: Transmitting circuits - connecting the power -- 39A: Keying the transmitter -- 39: The colpitts circuit -- 40: Power rating of vacuum tubes -- 41: The master oscillator -- 42: Frequency doubling power amplifier -- 43: Wireless telephony -- 44: Side band frequencies -- 45: The master-oscillator, power-amplifier system
Containing annotations.

Media/Materials

Processed Material/Paper

Physical description

1 volume, misc. pagination. : diags ; 33 cm

Record level

Series

Collection

Leslie Birch Collection

Credit line

Johnson's Wireless College et al. 1930s. [Compiled Johnson's Wireless College lesson papers], 04/001/008. Walsh Memorial Library, The Museum of Transport and Technology (MOTAT).

Current rights

My shortlist

Classification

Communication Artefacts Documentary Artefacts Instructional Documents

Production place

Dunedin Dunedin City Dunedin District Otago New Zealand

Subject: all levels

Citizens band radio Radio broadcasting New Zealand Radio Receivers and reception Transmitters and transmission

Collection type

Ephemera and manuscripts Walsh Memorial Library

Subject auto tags

Handwriting Book Rectangle Font Paper Paper product Document Parallel Letter Vellum

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