Standard GPO Bellset used with Telephone No. 232 or where a capacitor and bell is needed.
Standard GPO Bellset used with Telephone No. 232 or where a capacitor and bell is needed.
Fitted with Bell No. 59, capacitor and two 2.5 inch gongs.
The Bellset is wall mounted and originally had a black or coloured Bakelite case.
Later
versions had a plastic cover in Elephant grey or ivory and the capacitor was
cylindrical.
Diagram N526
Click here for the circuit diagram - Web users - CD users
GPO Engineering Instructions on Fire Systems
Click here for the difference between a Bell and a Bellset
To connect a Bellset No. 26 to a UK plug and socket system please wire as follows:-
Connect the white wire of a line cord (or connect directly to a line socket
on terminal 5) - Bellset terminal 2
Connect the blue wire of a line cord (or connect directly to a line socket on
terminal 3) - Bellset terminal 9
Connect a 3.3k ohm resistor between Bellset terminals 9 and 8.
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