Well after having one of the greatest days playing with my DC-5 combo today, I wanted to put in a new tube in the V5 (Reverb send and return). I didn't feel like pulling out the chassis so I just angled the amp so I could get to the tubes. As I am taking out the 2nd power tube, I pulled a little too hard and it comes out and barely hits the speakers back. Well it ended up being hard enough to shatter the top of the tube. $30 down the drain because of my carelessness! So you combo users!! Be careful!