Type AC 120
Magneto Table Telephone
MICRO-TELEPHONE. RE2002 (Old No.520), resting on a cradle switch, with cord RS702l (Old No. 2252), flexible cable RS 9600 (Old No. 2150), and terminal block with disc protector. The flexible cable is connected to terminals fitted under the ebonite base plate of the telephone.
GENERATOR. 2-magnet, which rings satisfactorily through a line resistance of 12,000-15,000 ohms.
The magnets of this generator also form the legs of the telephone.
This generator is fitted with a "cut-out" which is effected through the longitudinal movement of the spindle.
RINGER. Resistance of coils 1000 ohms.
PRESS BUTTON, for cutting out the ringer coils and short circuiting the induction coil, the button to be pressed down while ringing.
Overall dimensions 12.0 x 7.9 x 5.5 inches.
Weight, 11.7 lbs.
This instrument is similar to the AC110 except the the AC120 has a 1000 ohm ringer.
Taken from the Ericsson Telephone Catalogue 1912
More pictures at http://www.angus1.com/ericsson/eiffel.htm
|Home page||BT/GPO Telephones||Ericsson Telephones||Ericsson Home Page||Ericsson PABX||All Telephone Systems|