I have the control box for a 1235x (which is, at present non-operational) and the stock coil. I bought the setup as is and was told that it's the on/off switch which is the trouble. I dunno, since I couldn't get it going & was more interested in the control rod & mount anyway. I'll sell it for $65 US shipped in N. America. The coil alone is worth at least that much. If you're handy with electronics you could have the makings of a fine detector here. For more info and pics, email me at gowillygogogo@hotmail.com or send a personal message. ..Willy. It's SOLD!