On Sat, 10 Apr 2004 11:51:15 -0400, "Powell"
wrote:


"dave weil" wrote

With about 40 hours on a tubed microphone pre-amp I'm
now interested in increasing the timbre and micro-dynamics
resolution particularly in the 80 to 500 Hz range. My first
thoughts would be: Sovtek, RAM or Jan Philips NOS.
Any empirical suggestions?

Mullards would be better, of course, but they'll cost an arm and a
leg.

"Would be better"... in what regard?

I think that they're considered to be longer lasting, for instance.
Depending on the application, they are usually considered to be the
best in terms of microphonics as well.

The person to ask would be Kevin Deal. He's at:

http://www.upscaleaudio.com

I forgot to put that link into the previous post.

He's probably the guy who knows the most about matching tubes with
specific gear.

Also, that's a common tube, so you might be able to find NOS
GEs and the like if you look around locally. Sometimes you
can find an old-timey TV repair shop that still has tubes floating
around.

Finding vendor sources for tubes isn't the problem. It's the
brand name I'm asking about in regards to the specific
application.

Well, since you didn't bother to list the specific component, I'm not
sure what your beef is here. The reason I mentioned this is that you
can get tubes from those sources usually a lot cheaper than buying
them from "tube vendors" and so you can afford to experiment for
yourself. Those that you don't like can be disposed of on eBay.