Make sure that all excess leads are clipped and new solder joints are secure. Carefully put the PCB back into place making sure none of the leads to the other PCBs or tube sockets have been disconnected

Replace all the PCB mounting screws.

Dress the transformer leads. Poor lead dress can and will cause noise in an amp. Twist the green heater wires together and any other lead pairs together. All other leads crossing each other should do so at a 90 degree angle

DOUBLE CHECK ALL YOUR WORK

Re-install the chassis the same way you took it apart. Install the three small screws holding the back of the chassis to the top of the amp. Plug in the reverb and clips holding the power cord and reverb cable. Plug in the speaker cable. Install the back panel, then main chassis screws and straps on top

Replace the tubes and you should be ready to rock!