I know they used different flybacks, same connections, just different construction. Also, the "X" versions used a 6JC6 for the 3rd If and burst amp tubes in place of the 6EH7 and 6EW6 in the earlier chassis.
You're thinking about the difference between the 16E and the 16X. It seems that the 16E came out in early 1965 and the 16X came out in late 1965, as a '66 model.
07-03-2023, 09:40 AM
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