BELLSET No 6
Wooden cased Bellset used on Magneto and CBS No. 1 systems where intercommunication was required on Plan systems.  They would normally be associated with a table instrument.

Originally called the "Bellset, Trembler" this Bellset was used in conjunction with a Telephone No. 10 when connected to a Telephone No. 4.

Bellset includes (1928):-
1 x Bell, No. 13A minus base, or 1 x Bell No. 56A.
1 x Coil, Induction, No. 1 or No. 12

Mark 235 has a Bell No. 56A fitted internally with the bell gong positioned outside of the casing.  The pictures are of a Mark 235.

Made obsolete in 1947.

Circuit diagram - N 506.

Drawing - 1658 (Mark 235).

Dimensions - 7.9" x 7.75" x 2.75"
 

Picture dated 1929

 
 
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