Radio Tractor on:
[Wikipedia]
[Google]
[Amazon]
The Radio tractor was a mobile
At least 3 variants are known:
* Radio Tractor No. 1
* Radio Tractor No. 2 ( Four Wheel Drive)( Jeffery Quad), Unknown radio set
* Radio Tractor No. 3 ( White Motor Company), SCR-50 radio set
The No.3 truck was also accompanied by a tender "Maintenance truck No. 5" later renumbered as K-5.
* Annual Report 191
page 249 * 1918 Military Signal Corps manua
* New York Times 191
* Electrical world vol. 6
* The Wireless Ag
* Automobile journal Vol. 3
* https://web.archive.org/web/20121012130248/http://www.nsa.gov/public_info/_files/cryptologic_spectrum/umbrellas.pdf
Signal Corps Radio
Signal Corps Radios were U.S. Army military communications components that comprised "sets". Under the Army Nomenclature System, the abbreviation SCR initially designated "Set, Complete Radio", but was later misinterpreted as "Signal Corps Radio."
...
used by the U.S. Army for ground communications before and during World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
. Prior to World War I, trucks were referred to as "tractors", and there were also telegraph tractors, and telephone tractors.
Use
Very little information exists for these trucks, as most of the components were built before standardization. They first made their debut on the Mexican border in a radio intercept role, and later during World War I, some sets may have been reconfigured for RDF and other uses.Components
* SCR-50, 2 kilowattspark transmitter
A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark."Radio Transmitters, Early" in Spark-gap transmitters were the first type of radio transmitter, and were the main type used ...
, crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macros ...
or vacuum tube
A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied.
The type kn ...
detector receiver, 0.15-0.50 Megahertz
Variants
At least 3 variants are known:
* Radio Tractor No. 1
* Radio Tractor No. 2 ( Four Wheel Drive)( Jeffery Quad), Unknown radio set
* Radio Tractor No. 3 ( White Motor Company), SCR-50 radio set
The No.3 truck was also accompanied by a tender "Maintenance truck No. 5" later renumbered as K-5.
See also
{{Portal, World War I *Signal Corps Radio
Signal Corps Radios were U.S. Army military communications components that comprised "sets". Under the Army Nomenclature System, the abbreviation SCR initially designated "Set, Complete Radio", but was later misinterpreted as "Signal Corps Radio."
...
* SCR-108
* Crystal radio
A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most impo ...
* List of U.S. Signal Corps vehicles
This is a list of vehicles used by the U.S. Army Signal Corps from World War I through World War II.
Designations
Vehicles specifically designed or adapted for the Signal Corps were initially designated by a "K" number. The K-number was later pha ...
References
* Signal Corps Storage Catalo* Annual Report 191
page 249 * 1918 Military Signal Corps manua
* New York Times 191
* Electrical world vol. 6
* The Wireless Ag
* Automobile journal Vol. 3
* https://web.archive.org/web/20121012130248/http://www.nsa.gov/public_info/_files/cryptologic_spectrum/umbrellas.pdf
External links
* https://web.archive.org/web/20100413132056/http://www.gordon.army.mil/ocos/museum/equipment.asp scr and bc lists Amateur radio transmitters Military radio systems of the United States World War I American electronics Military electronics of the United States Radio during World War I