BELLSET No. 31
Bellset used by the BPO on Direct Exchange Lines with Telephone No's 156LB, 196LB or 246 in LB exchange areas. Also used on CBS Exchanges No's 1, 2 & 3.

Came complete with twin bell gongs, 1000 ohm ringer, Capacitor and a Coil Induction No. 21.

A Bakelite cover was provided.

Diagram N531.

Adjustment of Magneto bells

Click here for the circuit diagram - Web users - CD users

Click here for the difference between a Bell and a Bellset

Internal view of the Bellset
Capacitor to the left and Induction Coil to the right
 


ATM Bellset No. 31 diagram

 

 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: November 20, 2011

FM