Technician said the electronics has never been touched so it is all original.  The tubes have been changed to Peavey long

bottle tubes with double halo's.  Amp has two channels (clean channel and a distortion channel).  Uses a 12ax7 in the 

distortion channel so it makes for a smoother sound. Dual footswitch included (reverb & distortion).  If you hook up a 12"

Musicman speaker to the head you will be getting the same amp Chet Atkins always used when he played live. Footswitch

light comes on when switching to the distortion channel.