The 260A has 2 inputs, one with vibrato, and 12AX7 tube for the pre-amps. It uses 6CG7's in the vibrato circuit followed by 1/2 a 12AX7 for phase inversion. Power is supplied by two 5881's into two 12 inch Oxford speakers. Notice that the nameplate is in front of the grill cloth and has an overhang, earlier models built at the Inglewood location had their nameplates set into the grill with an extra piece for the overhang
Dimensions: 25" Wide. 9" Deep. 20" High. Weight 46 lbs. The Original catalog price in 1957 was $295.00.