Quote Originally Posted by Kip View Post
Try a Variac Lee.
Good idea but YOU MUST use an isolating transformer downstream of the Variac as these are at mains potentional.

Here's a Variac
http://cgi.ebay.co.uk/CLAUDE-LYONS-V...mZ110313909476

and here are some isolating transformers that can handle 110 volt.

http://cgi.ebay.co.uk/12-x-BBH-Isola...mZ350125103969

John s.