OK, so I'm looking at getting a blackstar ht-5c

but when i looked it up, it has a 12BH7 tube? when most amps Ive seen have 12ax7's? whats the difference between the two? and could i swap it for an ax7?

any knowledge is greatly appreciated.

Jackson rr5+rr3
epiphone les paul std
fender classic 50's
Epiphone sheraton ii
blackstar ht-5s
vox ac15c1
bugera 333xl
framus 2x12
mxr carbon copy
mxr bls chorus
ehx holy grail
Ted Stevens, is that you?

Edit: Check the Guitar Gear forum.
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