L. M. ERICSSON
TELEPHONE AB 520

Magneto Wall Telephone

AB 520
FRAMEWORK, polished walnut, constructed to hold two cells, RK 360 or RK 400 (Old No. 971 or 586).

MICRO-TELEPHONE, RE 4050 (Old No. 530), with cord RS 6500 (Old No. 2061), suspended on a hook-switch.

GENERATOR, 3-magnet, RH 3150, which rings satisfactorily through a line resistance of 20,000 ohms.

RINGER, of 300ohms resistance.

This telephone is fitted with a clip for papers.

Overall dimensions
Height 28.25 inches
Width 11.75
Depth 9.75

Weight, 17.2 lbs.

Taken from the Ericsson Telephone Catalogue 1912

Last revised: March 20, 2024