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L. M. ERICSSON
TELEPHONES AB 1200, AB 1205 & AB 1220

Magneto Wall Telephones
(All Steel Type)

AB 1200, AB 1205 & AB 1220
ab1200.jpg (13684 bytes)FRAMEWORK, black enamelled steel.

MICRO-TELEPHONE. RE 4000 (Old No. 532), with cord RS 6000, suspended on a hook switch.

GENERATOR. For type, number of magnets, and resistance through which the generator rings satisfactorily, see table below.

RINGER. For resistance see table below.

These telephones have enclosed line terminals.

Dimensions
Height 20.0 inches, Width 11.0 inches, Depth 6.9 inches.
 

Type   Generator type Generator magnets   Line Resistance   Ringer Resistance   Weight (lbs.)
AB 1200 RH 2400 2 5000   100 12.35
AB 1205 RH 3231 3 20000 300 13.25
AB 1220 RH 4450 4 25000 300 14.10

 

Taken from the Ericsson Telephone Catalogue 1912

 
 
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Last revised: March 24, 2024

FM2