Fullerphone MK IV*
MILITARY U.K. (different makers for same model)
- Country
- Great Britain (UK)
- Manufacturer / Brand
- MILITARY U.K. (different makers for same model)
- Year
- 1940 ??
- Category
- Morse-Equipment & TTY, RTTY, TDD etc.
- Radiomuseum.org ID
- 305337
Collection privée (réf.: 1996)
Collection privée (réf.: 1996)
Collection privée (réf.: 1996)
- Wave bands
- - without
- Power type and voltage
- Dry Batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Fullerphone MK IV* - MILITARY U.K. different makers
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 300 x 180 x 170 mm / 11.8 x 7.1 x 6.7 inch
- Notes
-
The Fullerphone was basically a DC line Morse telegraph. The main feature of the Fullerphone was that the transmissions were practically immune from overhearing by radio, which made the system at the time when it was devised very suitable for use in forward areas. In addition, the Fullerphone was very sensitive and a line current of only 0.5 microampere sufficient for readable signals. In practice, however, 2 microamperes were required for comfortable readings and it could be worked over normal Army field lines 15-20 miles long.
From 1935 the "Fullerphone Experimental" was developed. The result was the Fullerphone Mk.IV.
Fullerphone Mk.IV* was an update of Mk.IV with radio filtering to reduce interference of radio interception.
- Net weight (2.2 lb = 1 kg)
- 6.1 kg / 13 lb 7 oz (13.436 lb)
- Mentioned in
- -- Collector info (Sammler) (http://www.wftw.nl/fullerpr.html)
- Author
- Model page created by Heribert Jung. See "Data change" for further contributors.
- Other Models
-
Here you find 151 models, 117 with images and 48 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from MILITARY U.K. (different makers for same model)
Collections
The model Fullerphone is part of the collections of the following members.