WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
While looking for something else, I found a picture of the first TSE amp taken before I rotated the power transformer and added the choke, cap, and upgraded the heatsink. It is still running my home cooked PCB too.