On Oct 24, 2:30*pm, Phil wrote:
On 24/10/2012 14:29, misterroy wrote: For a class in school I want to generate an AC signal.
The project is modelling a wind turbine. We will probably drive the input using a drill.
I'm going to need about 10 models. I am only wanting to show the very basics. The signal then needs to be processed, that bit I can handle.
Can someone give me a link to a suitable component to produce the ac voltage on ebay?

thanks

Car alternator with the rectifier removed.

Hah. Not a sine wave. Armature is specially modified.