I have a couple of YBA amps, and a Hendrix
fanatic.They are a close circut to bassman plexi type
amps, just look at some schematics and you can see
what needs changing. You can tweak them the way you
like. I like to reduce the 100k feed back resistor to
47k..i also changed them to adhustable bias,and i like
EL34s in these amps.{just my opinion} the first thing
before any modding,just get good tubes in the amp,see
how it sounds,then you'll know the differences after
you change it to plexified.once you have it
plexified,then you may want to tweak things to get what
you like.the OEI should be great for this amp. These
amps are easy to work on..lots of room..and sound
great..hard to beat for what they cost.You can't build a
plexi from scratch for what you can get one of these
amps for..so its one of the best build amps there is out
there.{IMHO} Once you get started..there are many
here who could suggest things to help.I used Svet
EL34s and Amperex preamp tubes.I also like changing
the screen grid resistors..to one for each tube,instead of
shared resistor like original.
I hope your not thinking of the twin Hendrix used..alot
of recordings Electric ladyland was on a Twin
reverb..The amp your talking about is more for the wild
Hendrix sound,but still has great tone for quieter stuff
too..
Richie{~}==:::