I got very lucky and this came to me because it kept shocking people. So I checked it out and changed to 3 prong and disconnected the polarity switch (still in place but inactive). I can't post pics atm and will try to by tomorrow. It is all original with original tubes, Jensen ceramic 15, and the footswitch for reverb and trem! The Gibson GA20RVT is similar if not the same. Amazing tone and since I got such a great deal on it I'll pass it on for 1,000 + shipping. I'm in Lewiston Idaho zip is 83501 I have good deals on TGP, Marshall Forum, Harmony Central, and other forums. My user names on them are jabuckley and Flip Downey.