Telefunken Spark Coil, Type T-05-JH, circa 1910
THF156599 / Telefunken Spark Coil, Type T-05-JH, circa 1910
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Artifact Overview
This spark coil operated as part of a spark gap transmitter, an early design of transmitter that used sparks to create radio waves. The spark coil creates these electric sparks. German Telefunken equipment was used in commercial radio installations in the US, including Tuckerton Station, NJ. These stations, and the equipment contained within, were seized by the US military during WWI.
Artifact Details
Artifact
Induction coil
Date Made
circa 1910
Creators
Place of Creation
Location
at Legacy Locations in MRAP
Object ID
36.157.3
Credit
From the Collections of The Henry Ford.
Material
Nickel (Metal)
Wood (Plant material)
Copper (Metal)
Textile materials
Dimensions
Height: 8.75 in
Width: 6 in
Length: 18.5 in
Inscriptions
plaque:
Gesellschaff f. drahtlose
Telegraphie m.b.H Berlin
Erdle
plaque:
Type TO5 JH
Apparat No 2830
32
Keywords |
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Airport radio navigation beacons required pilots to listen for Morse code patterns to hold the correct course--notoriously difficult during storms. In 1936, Transcontinental & Western Air introduced an anti-snow directional antenna which could be used, in high-static situations, to "home in" on airport radio signals. This loop was housed in a sleek metal enclosure, protecting it from the elements.