BELL No. 67

Magneto bell (AC) with twin 6inch gongs for external use.

The bell ringer comprised of two 500 ohm coils which gave 1000 ohm ringer resistance.

Introduced early 1940's.

Adjustment of Magneto bells

GPO Engineering Instructions on Fire Systems

Click here for the difference between a Bell and a Bellset

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

Last revised: June 22, 2020