BELLSET No. 25


Bakelite cased Bellset which superseded the wooden Bellset No. 1 but was similar electrically.  Fitted with a capacitor (shown to the left of the bell ringer), a two winding induction coil (shown to right of the bell ringer) and a bell ringer.  The ringer mechanism is a Bell No. 59A (twin 500 ohm ringer coils).

The Bakelite covers were generally supplied in black, but could also be Jade green, Chinese red or ivory.

Used on non-ASTIC telephones i.e. Candlesticks and Telephone No. 162.

If a telephone is mounted on the Bellset then a Cord, Inst., No. 3/74H (Colour), 9" is required.

Bellset includes (1946):-
1 x Bell No. 59A, Unmounted.
1 x Bell-gong No. 2, Nickelled.
1 x Bell-gong No. 2A, Nickelled.
1 x Clip No. 29.
1 x Coil, Induction, No. 18.
1 x Condenser, M.C., No. 102.
2 x Parts, No. 2/SSC/17.
2 x Parts, No. 1/SSC/338.
1 x Parts, No. 1/SGU/1 (Colour).
1 x Parts, No. 1/SCO/1 (Colour).
2 x Washers, Locking, No. 1210.

Bellset includes (1956):-
1 x Bell No. 59A, Unmounted.
1 x Bell-gong No. 2, Nickelled.
1 x Bell-gong No. 2A, Nickelled.
1 x Clip No. 29.
1 x Coil, Induction, No. 18.
1 x Capacitor, Paper No. 7705
2 x Parts, No. 2/SSC/17.
2 x Parts, No. 1/SSC/338.
1 x Parts, No. 1/SGU/1 (Colour).
1 x Parts, No. 1/SCO/1 (Colour).
2 x Washers, Locking, No. 1-2 BA

Diagram - N525.

Adjustment of Magneto bells

Click here for the difference between a Bell and a Bellset

Some of these were made by Ericsson, their Model No. 3098 - Diagram N50834 dated 1935.

 

Additional Pictures

Interior view of Bellset
Components are left to right - Capacitor - Ringer - Induction Coil
 
View of base
 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: June 22, 2020

FM