Telephones of WW I
iTF5 - Compact lightweight field telephone, system of
Petrograd Polytechnical Institute, model 1916. Designed for
army rangers, observation posts, etc. Phonetic signaling,
local battery of pocket flashlight. WHD = 130 х 137 х 73 mm,
weight (less battery) 1.15 kg.
be continued after the picture set...
Compact receiver had special leather strap to keep the receiver
under the cap with both hands free. There was another strap to carry
the telephone on the ranger's chest. .
The telephone set included a reel with 500 meters of field cable.
The complete arrangement for voice communication of two people is
shown on the drawing.