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Date: Fri, 27 Dec 2002 13:53:27 -0700
From: Dan Todd
Subject: Pro Junior tube swap

Happy Holidays to one and all!
I just got a new non-tweed Pro Junior (1X1~15 watts) and want to
boost the harp volume I can get before feedback. In the archives,
knowledgeable folks sometimes recommend switching the 12AX7's for
12AU7's. I have never swapped out tubes before. Is it as easy as: 1)
unplug amp 2) remove 12AX7's 3) replace with 12AU7's 4) plug in
amp and blow ??
I also plan to play guitar through this amp. I see so many other
guitarists/harmonicists on the list these days. I wonder if my guitar
sound will lose commensurate treble tones (I play in a Robert Junior
style -- very few ripping post-Hendrix single string high leads -- more
of a pre-60's Memphis Sonny Boy ensemble sound, if that makes sense).
Any suggestions/ directions or tube brand recommendations would be much
appreciated -- even a reputable online dealer's URL.
Thanks very much for any help here, and have a great New Year everybody!
Dan Todd