Triumph Repair: Buzzer, roadster factory, moss motors

Question
I have a spitfire 1500/79 (California mod.). When I bought it I could not find a buzzer unit, only a six pin socket was hanging there.There is no information in the repair manual about this buzzer. So could you give me some information what kind (or type) of buzzer I should buy and from where.

Answer
Sorry, I couldn't locate a listing in the victoria british catalog.  But that doesn't mean it isn't there.

Victoria British
Spit Bits
British Parts Northwest
The Roadster Factory
Moss Motors

Are the primary companies dealing with replacement parts for triumphs.
I would suggest calling one or more of them until you find the correct part #.