Folks, I came across this amp - labled Tonemaster with no manufacturer identification on it. It has a blown speaker and OT. Can anyone help Identify it? I suspect that a Fender Champstyle OT would suffice given the 6v6 output tube. I would then replace the spraker with an 8" 4 ohm Jensen. Please note that the pictures are as I received the amp. Thanks for your help. Al