This instrument consists of a polished oak case, with carrying handle, containing Generator (3 Magnet), Magneto Bell (200 ohm.), Micro-telephone No. RE 3022, with Waterproof Cord and Celluloid Mouthpiece, 2 Dry Cells, Lightning Arrester and Terminals for line and earth.
Weight, complete with Cells 16 lbs.
Previously Model No. 390.
Types M.B. 100 - 125
Portable Telephone Instruments
This instrument consists of:-
A polished oak case with carrying handle, containing generator, magneto bell, micro-telephone with waterproof cord, and india-rubber mouthpiece with metal mountings (can he supplied with a celluloid mouthpiece if desired), 2 dry cells type RE. 190 (Old Catalogue No. 600), lighting arrester, and terminals for line and earth.
If specially ordered, the instrument can he supplied with a canvas cover.
|Type||Type of generator||No. of Gen magnets||Type of handset||Type of cord||Bell Resistance||Dimensions ins||Weight|
|MB 100||RH 3120||3||RE 3022||RS 7000||200||12 x 6.7 x 8.25||16.75|
|MB 110||RH 4100||4||RE 3022||RS 7000||200||12 x 6.7 x 8.25||17.5|
|MB 115||RH 4200||4||RE 3042||RS 8000||1000||12 x 6.7 x 8.25||17.5|
|MB 120||RH 5100||5||RE 3022||RS 7000||200||12.5 x 8.25 x 9.45||23.5|
|MB 125||RH 5220||5||RE 4042||RS 8000||1000||12.5 x 8.25 x 9.45||23.5|
Taken from the Ericsson Telephone Catalogue 1911
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