RCA Radio Telegraph Transmitter, Model ET-3650, 1927-1935

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THF156563 / RCA Radio Telegraph Transmitter, Model ET-3650, 1927-1935
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Artifact Overview

This equipment transmitted wireless telegraph messages, either from ships at sea to stations on shore, or vice-versa. It was used as technical equipment by trained radio experts--likely members of the US Navy. The ability to transmit and receive telegraphs through ship-to-shore communication opened up new worlds of maritime messaging, previously reliant on visual signaling (flags) and noise-making devices (foghorns).

Artifact Details

Artifact

Radio transmitter

Date Made

1927-1935

Creators

Place of Creation

Location

Not on exhibit to the public.

Object ID

36.157.96

Credit

From the Collections of The Henry Ford.

Material

Copper (Metal)
Lead (Metal)
Steel (Alloy)
Glass (Material)
Wood (Plant material)

Dimensions

Height: 17.375 in
Width: 18 in
Length: 15 in

Inscriptions

plaque, top (partial): Radio Telegraph Transmitter Model ET-3650 No 25216T D.L. 7550693 GRI Output -25-50 Walls Wavelength 600-800 Meters Power Supply 12 Volts D.C. RCA Radio Corporation of America New York, U.S.A [patent information] Caution: Before Installing or Operating Read Instructions front: RCA Radio Telegraph Transmitter Model ET-3650 See License Notice Inside Radio Corporation of America New York, U.S.A. sticker, front: Licensed Only for Use Authorized by Contract of Sale dials/controls: Filament Voltage Antenna Current Wave Change Switch Antenna Variometer Filament Rheostat Power Switch Send-Receive Switch Motor Control Switch Voltmeter Switch inside, condenser: Faradon Ser. No. 194 Wireless Specialty Apparatus Co. Boston, U.S.A. [patent dates: Jun 18 1917 -- Aug 17 1926
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