Types M.B. 200, 210 & 220
Portable Telephone Instruments
This instrument consists of:-
A polished Oak Case, with carrying handle, containing Generator, magneto bell of 300 ohms resistance, Buzzer, Press Button for short circuiting the receiver, Press Button for the Buzzer Signal, Micro-telephone RE. 3062 with waterproof cord R.S. 8010 (Old Catalogue No. 2322), india-rubber mouthpiece with metal mountings (can he supplied with a celluloid mouthpiece if desired), 2 dry cells R.K. 190 (Old Catalogue No. 600), lighting arresters, terminals for line and earth, and a screw driver.
If specially ordered, this instrument can be supplied with a canvas cover.
|Type||Type of Generator||No. of gen Magnets||Dimensions in inches.||Weight in lbs.|
|MB 200||RH 3120||3||12 x 6.7 x 8.25||17.6|
|MB 210||RH 4100||4||12 x 6.7 x 8.25||18.3|
|MB 220||RH 5100||5||12.5 x 8.25 x 9.45||24.25|
MB 200 was previously the No. 391
Taken from the Ericsson Telephone Catalogue 1911
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