From dhaugen–(at)–ail.idt.net Thu Jun 5 11:39:56 CDT 1997
Article: 52073 of alt.guitar.amps
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From: Gruvmyster
Newsgroups: alt.guitar.amps
Subject: Re: The 7581 of 6V6’s?
Date: Wed, 04 Jun 1997 23:37:12 -0500
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TimTube wrote:

>
> I believe the 7408 is just an industrial name for a 6V6, like a 7025 is a
> 12AX7.

True, but like a 7025 (low noise), the 7408 has a different
characteristic to justify the number. The 7408 was designed for HiFi
use, and has, according to Raytheon’s “Electron Tubes, Industrial and
Military Manual, Volume 2” (them thar really BIG tube manuals), a plate
voltage “knee” and cut-off voltage controlled to very small variations,
which give the 7408 “uniformity of power-output performance with a
minimum of harmonic and intermodulation distortion.”

Although I have some, I’ve never tried them since I also have a batch of
RCA 6V6GTAs I am happy with. I wonder how the 7408 would break up
compared to the 6V6. Anyone have first hand experience in a DR?

Doug
—
“Think, think, think.”– Winnie-the-Pooh
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