Yes there are bottoms. They were glued on at the corners and are off at the moment. The tubes are EH russian el84, EZ81 are Raytheon, 12AT7 are RCA black plates.
Dimensions: 7.5" width, 4.5" height, (plus tubes vertically) 15" long. Each amps weighs 15 lbs
Ships from North Bergen, NJ 07047