All Octal Preamp? (building an amp.)

[sonance_82]

Hey guys how's it going? Welp, this is my first post, basically because I don't have much to say. Now I'm having a buddy together an amp for me, and I was wondering if anyone had any thoughts (mainly because I'm gonna have to sell a perfectly good clark penrose to fund this.) So yeah, I don't want to screw this up.
What I'm looking for is a cathode biased, 6l6 driven guitar amp with tube rectification, an all octal preamp section, parallel effects loop, and a tone stack set up relatively close to a tweed bandmaster. This'll be a single 15 combo with either a weber or an e.v. melting the faces in the front row. (It used to be a blackface bandmaster.) My question is this:
-What values are generally used in the tone stack of a band master (or any amp that has that open, articulate, sparkling, glassy high end)?
- What's gonna give me a good, mean bass response?
-should I spend the money on a mercury mag. fat stack trannie?
-metal film or carbon composition?
-basically looking for the utmost in fidelity, a legato-like playing response, and a nice furry overdrive at high volume levels.
Any help would be great because I'm going to have to borrow an amp should someone buy the clark before the bandmaster's done. Thanks a bunch, and rock on.

[mark norwine]

, and a tone stack set up relatively close to a tweed bandmaster.

My question is this:
-What values are generally used in the tone stack of a band master

Not to nitpick, but Tweed bandmaster's don't have tone stacks. They have separate RC networks for the bass & treble. The component values you pick won't have the same kind of interaction as a "stack" would have....

Right now, you own a penrose [basically a 5F4, right?]

http://schematicheaven.com/fenderamps/super_5f4_schem.pdf

But you want a 5E7 [albeit with mods]

http://schematicheaven.com/fenderamps/bandmaster_5e7_schem.pdf

The 2 designes are virtually identical.....[see the links]

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Also, I'm struck by these statements, because they [in my mind] do NOT go together at all:

What I'm looking for is a cathode biased,

-basically looking for the utmost in fidelity,

Maybe it's just how I'm reading all of this, but I don't think I'd sell your Clark just yet....

[sonance_82]

Welp, I've played amps that are cathode biased but still allow all of what I play to come through. I'm also after a more variable tone stack (i.e. treble, middle, and bass controls) than is available on a bandmaster. I guess I should have said that I'm looking for the same basic e.q. curve but with more control over it. How about the whole octal preamp set up? I just don't know what else to try, and it seems like I've owned and gigged with everything at this point. Also, thanks for the advice on the clark. I REALLY like that amp.

[mark norwine]

too many variables. I couldn't begin to suggest....