David is a regular gigging player who needed an amp to cut through the mix a little better than his Gibson GA-20 which I recently went through. This is a fixed bias TT30 Bandmaster built into a tweed 1x12 cab that he already had. The cab was cut, rounded over and sanded to accomodate the larger chassis and recovered using the existing tweed. It includes a bias pot, external bias test points and a 2/4/8 ohm output transformer. It's running through an 8 ohm Jensen RI P12N and sounds amazing, hence the huge smile on Davids face in the last pic.

Here are some pictures of the build process.