Name: Trace
E-Mail: tonsoftone@aol.com
Date:  9/22/99 1:38 PM
Subject: Re: Silr Mica Caps


):

    How about some tips for tone stacks for a
    Marshall-type amp using ceramic treble caps?
    (The combinations that work really well using
    the mica caps don't seem to translate over to
    ceramic caps!)

I don't know if this is a tip but here's my basic rule of
thumb and of course it depends on what someone is looking for...

33K / 470pF or 500pF
39K / 470pF (mostly for JCM800's)

Plexi = 47K / 300pF to 330pF 470pF (for bass lovers)
JCM800 = 47K / 250pF

Plexi = 56K / 220pF I normally don't go with a 56K in
JCM800's because it get's muddy real in a hurry.

I hear the JCM800's differently from the "plexis" but I may
be the "odd man out" as they say. (ha, ha) Since the Master
Volume is connected off from the treble pot in the 800's the
lowend and midrange are effected differently than in a
plexi where the phase inverter tube is being driven into
breaking up alos (You have to love that sound!! ha, ha)
So anyways that's why I use different values on different
models. I hope that made some sense to someone! (ha, ha)
Ohhh..often times I try to make sure a Pes Paul sounds
good through it as well as a Strat. Sometimes if a customer
is a "strat only" guy then I set it up for that. Les Pauls in
general sound pretty consistant where Strats can vary A
LOT in how they sound. 

~~~
Trace