TH400 modulator 8623365

[SS396]

Trying to find one of these modulators with no luck. The original one I have is no longer working and I don't want to put on one of the newer small type. Does anybody know where I can get one or maybe another solution ?

[1968RSZ28]

http://www.ebay.com/itm/64-65-66-67-68-69-70-NOS-th400-Modulator-Valve-GTO-Chevelle-442-Camaro-copo-l78-/310774864682?pt=Vintage_Car_Truck_Parts_Accessories&hash=item485ba01b2a&vxp=mtr

Paul

[SS396]

$199 !! wow, were they originally gold plated ?