Picked up one of these of ebay - brand new in box, bought from someone reselling a load of bankrupt stock. Best bet is to buy the "upgrade kit" which consists of a new PCB, wiring loom, and control panel already assembled. All you have to do is disconnect the old one and pop this in in its place. Mine even came with full instructions on how to do it, with photos and all the parts required (couple of new leads for the electrode, cable ties)
Cost me £80.00, fitted it myself in about an hour with a couple of screwdrivers. Really really easy. If you can deal with a screwdriver you can do it. Worked first time, hasn't cut out once.
Tugger
February 2005