Do a forum search on this. There is lots of information.
Basic rundown.
2 Channel Duals.
Early ones.
Rev C
Rev D
Approx SN 3 - 6XX??
Rev E
Approx 6XX - 1XXX????
(all have terrible clean tones)
Rev F
Approx 1XXX - 3XXX.
(Has a good clean tone)
The not so early ones.
Rev G.
'Looser' bigger tone. Good clean.
These are your garden variety 2 channel rectos but they are still STINKING awesome!
Different rectos are different flavours of ice cream, and with 2 channel Rectos, it is all different shades of vanilla (or chocolate, if you'd prefer). Rev C and D will cost more because they are more RARE. Supply and demand. There are enough Rev Fs around that they pretty much fetch the same $$$s as a Rev G, unless you have the blackface option!
