The mains transformer is suitable for the Fender® Tweed Twin Amp 5F8 "High Power Tweed Twin" and the Twin Amp 5E8 "Low Power Twin" with a double 5U4 rectifier. It is also compatible with the Fender 57 Twin-Amp Reissue, serving as a replacement for part number 0064603000. The lamination measures 4 1/2", with a stacking height of 1 5/8", and mounting dimensions of 3" x 3 ¼". The overall dimensions are L x W x H: 114 x 96 x 98mm.