BELLSET No. 1


Wooden boxed magneto bell with two external gongs used with C.B. table telephones..

Complete with capacitor, 1000 ohm ringer and two winding induction coil.

Generally used with Telephones No. 2, No. 10 and No. 150 etc (Candlestick telephones).

Bellset No. 1, with bias spring, was also available for Telephones No. 76, No. 82 and No. 124.

Do not confuse with a Bell No. 1 which only comprises of a bell ringer.

Superseded by Bellset No. 25.


Identifying a Bellset No. 1

 

Mark

Includes Blank 234/5 NT10 NT12 NT19
Bells No. 1, unmounted 1 1 - - -
Bells No. 11, unmounted - - 1 1 -
Bells NT No. 1002A - - - - 1
Coils Induction No. 3 or 14 - - 1 1 1
Coils Induction No. 4 or 14 1 1 - - -
Condensers MC No. 2 or 30 1 - - 1 1
Condensers MC No. 3 or 30 - 1 - - -
Condensers MC No. 6 - - 1 - -

Taken from the GPO Rate Book (1928)

 

Adjustment of Magneto bells

Click here for the difference between a Bell and a Bellset

Pictures showing Bellset No. 1 with the capacitor (bottom of left hand picture)
and the Coil Induction No. 4 (above the capacitor)

 

Picture of Bellset No. 1 with Coil Induction No. 18
This Bellset has most probably been factory refurbished by the GPO as the Induction coil is of the later type and the terminals are on the base, instead of on the bottom of the front casing.
Note the second paster diagram, pasted over the original paster

 


Early Bellset No. 1

These Bellsets below are early examples, they can be GPO or NTL examples.
The capacitor in both styles, fits inside the base.

Front View Internal View

 

Front view showing diagram and latch
 
Close up of terminals

Another early Bellset No. 1

Front view of the case and to the left is the capacitor which has been removed from the base.
 
View of the base showing where the capacitor fitted.  One fixing clip is missing.
 
Inside the Bellset showing Induction coil and bell ringer

 

 

 
 
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Last revised: May 11, 2015

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