BELLSET No. 37

For use with Telephone No. 246 or phonogram terminations on Automatic or C.B. manual exchange lines or P.B.X. extensions at the Western Union Telegraph Companies offices.

Introduced circa 1937.

This Bellset is similar to Bellset No. 26 but with the addition of a Coil Induction No. 27 (shown to the right of the bell ringer). 

The original bell sets were produced with a square capacitor and from the mid 1950's a cylindrical capacitor was fitted (see picture below).

The Bellset is usually wall mounted and the covers came in the colours black, red, green and ivory.

The covers were Part No. 1/SCO/1 Colour, the black being produced in Phenolic Resin, Type GX (Specs BS771 & S116) and the three colours in Diakon, Grade L.A. (Spec S116).

The early cased bell sets could be fixed under a 100 or 200 type table telephone.  Special fixing screws are required which supplied as standard on the earlier bell sets.   A Cord, Instrument No. 4/51H, Brown, 9" or Cord, Instrument No 5/22H, Brown, 9" would also be required to connect the telephone to the Bellset.

Could also be used with a Telephone No. 246 & Headset No. 1 in Automatic and CB areas.

ETL made some of these, their part N3120A1.
ATM made some of these, their part L40277.

Bellset includes (1946 and 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. 27.
1 x Condenser, M.C., No. 102 (1946) or 1 x Capacitor, Paper, No 7705 (1956).
2 x Parts, No. 2/SSC/17.
1 x Parts, No. 1/SGU/1 (Black)
1 x Parts, No. 1/SCO/1 (Black)
2 x Washers, Locking, No. 1210 (1946) or 2 x Washers, Locking, No. 1-2 BA (1956).

Circuit diagram - N537.

Drawing No. - 63049.

Adjustment of Magneto bells

Click here for the difference between a Bell and a Bellset

How to spot a reproduction Bakelite Bellset cover

Covers and dimensions

Interior view

Click here for the difference between a Bell and a Bellset

Last revised: November 03, 2025