EMI / RFI Conduit Fittings
The increasing use in the 1930.s of radio communication equipment in vehicles and aircraft led to the development of Conduit Fittings as
the first EMI/RFI protective devices. The piston engines used at that time were notorious generators of electrical interference.
The resemblance between these parts and those found in a plumber.s
kit is more than coincidental.
Many of the configurations that found their way into the military system were based on the commercially available plumbing components
first used to shield cabling from electrical interference.
Conduit Fittings were replaced as more sophisticated connectors and shielding methods evolved over the years,
and now are used mainly for feed-thru applications.
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