ERICSSON TELEPHONE No. N1840


Portable Telephone

n1840.jpg (12028 bytes)This instrument is designed for the same purpose as N1830, but it is fitted with a more powerful generator.

It is specially suitable for testing long lines or those where the insulation is low, and may also be used as a temporary station during construction operations.

The apparatus and battery are completely enclosed in a hardwood case which fits into a strong leather carrying cover with shoulder strap.

Overall dimensions 9 x 9.5 x 4.25  inches.

Weight 13.75 lb.

Introduced around 1934.

Swedish Ericsson No. MB310

Taken from the Ericsson Telephone Catalogue, edition No. 26 Supplement

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Last revised: June 27, 2002