Has anyone tried the new Challenger amps from the UK? Below is a link to a Challenger III listed by Anthony Welsh on ebay over in the UK. It uses the GS-35 triode. I noticed it uses a toroidal transformer. Link; http://cgi.ebay.com/Challenger-3-1500W-HF-Amplifier-Brand-New-Warranty_W0QQitemZ9725254069QQcategoryZ48700QQcmdZViewItem Best, Will