L. M.
ERICSSON | ||||||||||||||||||||
Magneto Wall Telephones AB 510, AB 511 & AB 515 TRANSMITTER. RC 120 on adjustable arm RC 660. RECEIVER. RD 110 (Old No. 546), with cord RS 4300 (Old No. 2030), suspended on a hook-switch. GENERATOR. For type and number of magnets, see table below. These generators ring satisfactorily through a line resistance of 25,000 ohms. RINGER. For resistance, see table below. These instruments have enclosed line terminals and are fitted with a clip for papers. Overall dimensions:
Telephones AB 511 and AB 515 are each provided with a press-button for cutting out the ringer coils and short circuiting the induction coil, the button to be pressed down while ringing. If specially ordered, we supply these two telephones without the above press-button and with the connections so arranged that the ringer coils are cut out when the generator is operated. Taken from the Ericsson Telephone Catalogue 1912 |
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Last revised: March 20, 2024FM2 |