PORTABLE - TELEPHONE
Combined Telephone and Telegraph Instrument
MA 80
APPARATUS CASE of fibre. Dimensions 6.96 x 4.73 x 2.36 inches, containing a buzzer, line condenser, and dry cell R.K.
180 (Old Catalogue No. 602b).
MICRO-TELEPHONE R.E. 9100 (Old Catalogue No. 496), telescopic type, with waterproof cord R.S. 7010 (Old Catalogue No. 2159), provided with a plug which fits into the jack in the apparatus case through an aperture in the side of the leather case.
LEATHER CASE. M.V. 80. This is constructed to hold the apparatus case and Microtelephone, and is provided with a shoulder strap. This instrument is intended for telephonic as well as telegraphic communication, the latter by means of the buzzer.
Weight, 5.55 lbs.
When it is required to ring a magneto bell or indicator at the distant end, our Portable Generator type M.A. 300 can be used in conjunction with this instrument.
Was previously the No. 393.
Taken from the Ericsson Telephone Catalogue 1911
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