'59 tube amp chassis for 6L6's from lowrey organ - $10 (bell

Hmm,

http://seattle.craigslist.org/see/msg/653728548.html

These can make fine amps ... for the highly solder-enabled and cabinet-inclined. This one missing a piece or two including the 'pre-amp' chassis, connected by an umbilical cord, which got mentioned in passing; that chassis has the vol/tone controls on it. J

There's quite a few of them on evilbay. Must be tax time!