Combined Telephone and Telegraph Instrument
(Old Catalogue No. 394)
Made of fibre, dimensions 5.95 x 4.14 x 1.90 inches, containing a buzzer, line condenser and dry cell RE. 170 (Old Catalogue No.
RE. 9100 (Old Catalogue No. 496), telescopic type, with waterproof cord R.S. 7010 (Old Catalogue No. 2159).
The cord is provided with a plug which fits into a jack in the apparatus case through an aperture in the side of the leather case.
LEATHER CASE (MV 10)
This is arranged to hold the Apparatus Case and Micro-telephone, and is provided with a shoulder strap for carrying purposes.
This instrument is intended for telephonic as well as telegraphic communication, the latter by means of the buzzer.
Total weight, 3.9 lbs.
When it is required to ring a magneto bell or indicator at a distant end, our Portable Generator, type M.A. 300, can be used with this instrument.
Formerly this instrument was provided with dry cell RN 160 (Old Catalogue No. 602) which was fitted with wire connections for fastening to
terminal screws provided in the instrument base.
The cell RN 570 now supplied with this instrument is fitted with contact studs and is self-connecting.
This difference should he noted when ordering spare cells.
Taken from the Ericsson Telephone Catalogue 1911