BELL No. 53A


Magneto bell with twin 6 inch gongs (Bell-Gongs No. 15).

Coil resistance is 1000 Ohms.

Used indoor and outdoor.

Superseded by Bell No. 67A

Adjustment of Magneto bells

GPO Engineering Instructions on Fire Systems

A modified version of this bell is used in the Telephone No. 25
The bell mechanism and gongs are mounted internally.

Superseded by Bell No. 67.
 


 
 
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Last revised: May 27, 2017

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