Can't get a price on a replacement unit...... Tucor inc. is a company out of Holland I think? They specialize in the two wire (TW) systems a.k.a. to as decoder systems. I have good reason to believe that the controller or micro proser are toast. You can only purchase parts through authorized dealers (none of the ones I found on line get back to me) Does anyone know if another type of unit will work with the tucor decoders? Is it true that one of these units may list as high as $6,000.00+? I appreciate your input and any HELP!!