BELL No. 30, 31, 32, 33 and 34

Electro-mechanical "Gamewell" bell with a resistance of 20 ohms.

The picture shows the mechanism of electro mechanical bell No. 30A.

Used on Fire Alarm systems.

Bell No. 30A - 6 inch gong.
Bell No. 31A - 8 inch gong (Bell-gong No. 10).
Bell No. 32A -12 inch gong.
Bell No. 33A -15 inch gong.
Bell No. 34A -18 inch gong.

Found in the GPO Rate Book - 1928.

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Last revised: September 10, 2019