eric6.gif (7121 bytes)ERICSSON TELEPHONE No. AB 590


MAGNETO WALL TELEPHONES

ab535.jpg (17833 bytes)
AB 535

FOR USE ON MAGNETO CALL AND CLEAR SYSTEMS GIVING THE HIGHEST GRADE SERVICE UP TO THE MOST EXTREME CONDITIONS

CASE WORK
Polished walnut, constructed to hold the speaking battery of 2 cells, either Leclanche or dry cells.

MICRO-TELEPHONE
L.B. hand-set, with suspension loop for hanging on hook switch. Fitted with with 3 ft. 4 way cord.

GENERATOR
4-magnet or 5-magnet type. These generators will operate the ringer satisfactorily through a line resistance of 30,000 ohms.

RINGER
For resistance see table below.

DIMENSIONS
Height 28.5 inches, Width 13.4 inches, depth 9.75 inches.

BATTERY COMPARTMENT
To take two cells up to maximum dimensions of 3.75 inches x 3.75 x 8 inches in height, for each cell.

Type No. of magnets   Ringer Resistance   Circuit Type   Weight
AB 530 4 300   Series 19.2
AB 535 4 1000 Bridging 19.2
AB 535G 4 1000   Bridging 19.2
AB 590 5 2000 Bridging   20.25
AB 590G 5 2000 Bridging   20.25

Telephones AB 590 and AB. 590G are for use on very heavy bridging circuits.

Telephones AB 530, AB 535 and AB 590 are supplied with push button to cut out the ringer coils and short circuit the induction coil, so as to cut out the home bell when ringing out, and also to give increased reception efficiency during conversation.

Was Telephone 345.

See ATCS Article on the Commonwealth Ericsson

 

In both the 1905 and 1912 Ericsson Telephone Catalogue

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Last revised: October 31, 2001