Wall mounted C.B. Bellset with magneto bell, capacitor and induction coil.

Note the lack of bell gongs - the ringer clapper hits the two metal flanges fixed to the Bellset cover (see picture lower left).  Made by Western Electric as their type 131A and later 1131A.

Used with Telephone No. 63.

Bellset includes (1928):-
1 x Bell, magneto type, 1000 ohms.
1 x Coil, Induction No. 3 or No. 14.
1 x Condenser, M.C. No. 2.

Circuit diagram - N511.
Diagram - N.T. 9400.

Adjustment of Magneto bells

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Last revised: August 23, 2021