Say I wanted to theoretically build a higher power version of a Brownface Princeton, what would I need to change? The Mojotone chassis fits a 2 1/4 x 2 13/16 PT, same size as the TAD Deluxe Reverb, ([email protected] 160mA). The current PT is a gentle 650v C/tap @ 70mA. I know the sound would change a lot, but what else would need to be changed? There's not too many larger OTs with 8k, so I guess a DR O/T at 6.6k and 20w rating would match the P/T? Anything else?