RCA Vacuum Tube Detector, Model AD 1527, 1921
01
Artifact Overview
Unlike modern radio stations, which transmit recognizable sounds, the first radio transmitters broadcast information by wireless telegraphy. Pulses of radio waves spelled out text messages in Morse code, reproduced as clicks in the operator's earphones, which would be transcribed. The radio detector indicated the presence of incoming radio signals. This version was built to withstand harsh marine conditions onboard ships.
Artifact Details
Artifact
Radio detector
Date Made
1921
Creator Notes
Manufactured by General Electric Company, Schenectady, New York, for distribution by Radio Corporation of America, headquartered in New York, New York.
Location
Not on exhibit to the public.
Object ID
36.157.88
Credit
From the Collections of The Henry Ford.
Material
Composition (Material)
Steel (Alloy)
Bakelite (TM)
Dimensions
Height: 9.25 in
Width: 5.5 in
Length: 5.5 in
Inscriptions
plaque:
Detector
Vacuum Tube
Model AD 1527
Give Model When Ordering Parts
Patented Apr.12, '10, Oct.22 '18, Dec.23 '19
M'F'D fro Radio Corporation of America
by General Electric Co., U.S.A.
N.P. 20462
knobs:
GE
dials:
Plate
Filament
Phones
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