BELL No. 59A


Similar to Bellset No. 26, but has no capacitor fitted. Used extensively as an extension bell for internal use only. Early versions came with a black Bakelite cover whilst later versions had a cover coloured elephant grey, ivory or black.

Picture to the right shows a black plastic covered bellset.  The paper bag contained three round headed screws for fitting the bell to a wall.

The bell ringer comprises of two 500 ohm coils that can be connected in parallel if needed.

Normally fitted with matched bell gongs, but where a distinctive tone is required, the following combination of 2.5in gongs can be provided.
Bells-gongs No. 2 - Nickelled or oxidised
Bells-gongs No. 2A - Nickelled or oxidised
Bells-gongs No. 3 - Aluminium
Bells-gongs No. 17 - Steel or bronzed with concentric hole
Bells-gongs No. 12 - Cow gongs - cannot be fitted to Bells Nos. 1A or 59A.

Adjustment of Magneto bells


Bells 59A-1 unmounted = Twin 500 ohm coils, used in Tele 706, 710 etc (two fly leads fitted).  Introduced in October 1958.

Bells 59B-1 unmounted = Twin 500 ohm coils, used, used in Tele 706 with printed circuit board (coil tags directly soldered to board).  Introduced in October 1959.

Bells 59C-1 unmounted = Twin 500 ohm coils, used in Tele 746, 740 etc.  Introduced in December 1961.

Bells 59D-1 unmounted = Twin 2000 ohm coils, used to convert old apparatus to PST/new plan (two fly leads) - shown above.  Introduced in January 1980.

 
BACK Home page BT/GPO Telephones A - Z Index Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: October 08, 2006

FM