ERICSSON
TELEPHONE No. AB 2500
 

(Old Catalogue No. 365)

Case enamelled cast iron mounted on a walnut backboard.

Micro-telephone RE 4004 with ebonite handle and cord RS 6000 suspended on switch-hook.

Generator, 3-magnet, which will ring satisfactorily through the ringer and a line resistance of 20000 ohms.
Ringer. The resistance of coil is 300 ohms.

This telephone is provided with a writing tablet.

Height of Backboard: 400 mm.
Width of blackboard: 175 mm.
Weight: 6.9 kg

In both the 1905 and 1912 Ericsson Telephone Catalogue

 

Last revised: May 21, 2022