BUZZER No. 32

Buzzer No. 32A-1	Buzzer No. 32A-2
Buzzer No. 32C-3	Buzzer No. 32C-3/2

Single coil buzzer used in 700 type telephones.
No. 32A - 55 ohms & 65ma.
No. 32B - 1K ohms & 15ma.
No. 32C-3 - 138 ohms & 40ma
No. 32C-3/2 - electronic buzzer

Buzzers with a suffix -1, -2 or -3 have a resistor and capacitor (in series) wired across the contact points.

Buzzer Suffix
-1 - Used on Telephones 706, 710 and Bellset No. 48 (fixes on top of one of the bell gongs).
-2 - Used on Telephone 711
-3 - Used on Telephones 740, 741, 746 and Bellset No. 50 (fixes on the switch hook upstand) 

Diagram N647.

Buzzer No. 32C-3/2 fitted to a 74X type telephone

Last revised: March 29, 2020