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

Note the lack of bell gongs - the 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: November 09, 2020