Losi & Nosram Speed Controllers for Shark, Mini8 & Carisma
 

Nosram Shock 40 brushless speed controller. £20 including UK shipping
Perfect for 1/16 motors but will also run 540 size over 7.5T. Can also run brushed motors, more details here: http://www.nosram.com/en/products/el...ntrol/details/
http://i61.photobucket.com/albums/h7...ps233c7464.jpg

Losi Mini8 brushless speed controller - as supplied with the mini8. £12 shipped within UK.
http://i61.photobucket.com/albums/h7...pscafb65d6.jpg