L. M. ERICSSON
TELEPHONE CD 150

TELEPHONE - WALL
Common Battery telephone

CD 150
FRAMEWORK, polished walnut, with external fittings mottle bronzed.

MICRO-TELEPHONE, RE 4007, with cord RS 6021, suspended on a detachable hook-switch.

CONDENSER, with a capacity of two microfarads.

RINGER, 1,000 ohms resistance.

The line terminals are enclosed.

Overall dimensions
Height 9.50 inches.
Width 6.75 inches.
Depth 3.75 inches.

Weight 6.0 lbs.

Taken from the Ericsson Telephone Catalogue 1912

Later version with no key lock and simple hook switch

A plug and socket has also been added for the handset

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