A BPO wooden Bellset used with Telephone No. 4 on CBS No's 1, 2 & 3 systems and Repeater Telephonic No. 9A on CBS No. 1 & Magneto systems.

Fitted with a 250 ohm magneto bell ringer.

Superseded by Bellset No. 31 by 1946.

Bellset includes (1928):-
1 x Bell No. 1A, unmounted.
1 x Coil, Induction, No. 1 or No. 12.

Diagram - N505.

Adjustment of Magneto bells

Click here for the difference between a Bell and a Bellset

Bellset No. 5 internal view - the gongs are black!
Paster diagram from A GEC produced Bellset
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Last revised: November 03, 2020