NATIONAL TELEPHONE COMPANY
B31


Magneto Wall Sets

Pattern No. B31

Comprises - Granular Carbon Transmitter with projecting mouthpiece, Double Pole Receiver, Cord, Automatic Switch-Hook, Induction Coil, Lightning Arrester, 2 Magnet Generator and Bell.

This set is suitable for any distance up to one mile.  The batteries are fitted away from the instrument.

Taken from the 1903 Catalogue.
 

 
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Last revised: July 03, 2020

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