This Bellset is an improved version of Bellset No. 39 which improved transmission quality. 

This Bellset consists of a base unit, complete with switch unit, buzzer, two push buttons and an indicator.  This combination does not contain a bell, so a  bell for incoming calls was always fitted externally.

Two batteries called Cells, Dry R40 (1.5v each) were supplied to power the intercom facility and buzzers.  These were located in a Box, Battery No. 2, which was fitted close to the Bellset.

The Bellset can be used on Shared Service and PBX circuits with recall.

Used on extension plans 5 & 7 in Automatic and C.B. areas and has to have a Telephone No. 248 fitted on top.

The press buttons and labels are stored inside the Bellset and fitted, as appropriate, on installation.

The Bellset could also provide secrecy when the extension was connected to the exchange line.  This required the removal  of links fitted between the Terminals 3 - 4 and the repositioning of the links connecting to terminals 34 and 31.

These were supplied in Mark 1 and Mark 2 (1954) models.  The Mark 1 used a Capacitor, Paper No. 7707, whilst the Mark 2 used a Capacitor, Paper No. 7722.

Made by GEC - click here for more details.
GEC diagram No. 10695.

The Bellset No. 44 can be easily identified from a Bellset No. 39 as the Bellset No. 44 has the indicator to the left of the sliding switch and the press buttons are made of plastic and ivory in colour.

For more information go to the Bellset No. 39 page.

Superseded the Bellset No. 39C circa 1955.

Bellset includes (1956):-
1 x Block Terminal No. 20/12, Black.
1 x Capacitor, Paper No. 7707 (Mark 1).
1 x Capacitor, Paper No. 7722 0.5uf (Mark 2).
1 x Capacitor, Paper No. 7722 2uf (Mark 2).
1 x Cord, Instrument No. 9/19H, Brown, 54".
1 x Labels No. 332 C.
1 x Labels No. 332 E.
1 x Labels No. 332 F.
1 x Labels No. 332 H.
1 x Labels No. 332 J.
1 x Labels No. 333.
1 x Buzzer No. 30A, unmounted.
1 x Indicator No. 4013A.
1 x Rectifier-element No. 1/12A.
1 x Key No. 317.
1 x Key No. 318A.
1 x Key No. 318B.
1 x Resistor, Coil No. 15 - 300 ohms.

To be requisitioned separately when "Operator Recall" facility is required:-
1 x Labels No. 332 G.
1 x Labels No. 332 K.

Click here for the difference between a Bell and a Bellset

How to convert your Bellset 44 to work with plug and socket

Diagram for 1 extension working (Plan 7) - N4310.

Diagram for 2 extension working (Plan 5) - N4308.

Diagram for Bellset No. 44 - N544.

Drawing - 90569.

Bellset No. 44 - as supplied
Bellset No. 44 (Mark 2)  - with both pushbuttons installed
Bellset No. 44 (Mark 2) - Internal View
Note the two push buttons in the unused (parked) position
( lower front left and right)


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Last revised: March 10, 2024