Today I tried something different, not having any spare
transformers around. I put a 1 mfd 25 v cap in the
bypass of the 12AX7 instead of the stock 25/25. The
resistor across it had already been upped to a 2.2k from
the stock 1.5k. This really brightened the amp up a
LOT by removing some of the low end. I liked it, but it
also gave me a rather loud hum that I hadn't anticipated
so I went back to the stock config. I don't have any
caps with values in between the 1 and the 25 to play
with, but I wonder if there might not be a happy
medium somewhere.