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Photographer
Keystone View Company
70
Topic
Radio
70
Portraits
5
Work Type
lantern slides
70
Rights
No Copyright - United States
70
Local Collection Name
Visual Instruction Department Lantern Slides, 1900-1940 (P 217)
70
Type
Image
70
Format
image/tiff
70
Collection
OSU Special Collections & Archives Research Center
70
Institution
Oregon State University
70
Decade
1900-1909
70
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1900-1909
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Radio
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41.
How a microphone works
42.
Construction of fixed and variable condensers
43.
Function of the variable condenser in tuning
44.
A typical crystal detector hook up
45.
The use of the phone condenser
46.
Principle of the condenser
47.
The electrolytic detector
48.
A simple tuned circuit
49.
Microphone detector
50.
The construction and use of a loose coupler
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