First, I start by disassembling the amp. This includes clipping all transformer leads and reverb cables. Once it's disassembled, there's no going back! It's actually a good feeling.
Now that the amp is broken down to it's components, I get to work on the chassis modification.
I also fabricate my circuit board at this time. I use 1/8 inch G10 Garolite and turrets. The mounting holes are designed around the chassis and I re-use the mounting spacers that held up the original circuit.
I prefer turrets, because wiring the jumpers around the base of the turrets keeps everything on top for visibility, maintenance and troubleshooting:
The circuitry is built out:
The circuit is wired into the chassis with the rest of the tube sockets, control pots, transformers, etc.:
The filament heaters were wired prior to the circuit board installation:
Eventually, everything gets finished:
Finally time for testing, and installation of the faceplate I designed:
And then to play it!