BUZZER No. 1
BUZZER
No. 2B - Used in HTS and Telephone Intercom No. 3/1A
BUZZER No. 3
BUZZER No. 14
BUZZER No. 18
BUZZER
No. 19
BUZZER
No. 20 - General purpose wall mounted buzzer
BUZZER
No. 21 - Fitted in HES telephones
BUZZER
No. 22 - Renamed as Hooter No. 2
BUZZER No. 23A - Exchange howler
BUZZER
No. 24A - Fitted in Bellset No. 39
BUZZER
No. 25A - Used on emergency alarm circuits
BUZZER
No. 26A - Fitted in Telephones No. 250
BUZZER
No. 30A - Fitted in Bellset No. 44
BUZZER
No. 31A - Magneto buzzer for night alarms etc
BUZZER
No. 32 - Fitted in 700 type telephones
BUZZER
No. 33A - Fitted in PMBX No's 2 & 3
BUZZER
No. 35A - Used in Monitors No's 2 & 3
Extension
Tone Caller No. 2
Tone
Caller No. 15
Tone
Caller No. 16
Hooter
No. 1 - 50 volt exchange Hooter
Hooter
No. 2C - 250v ac Mains Klaxon
Hooter
No. 3C - 250v ac Mains Klaxon