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

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