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From: postmaste–(at)–riodeel.com (Ned Carlson)
Newsgroups: alt.guitar.amps
Subject: Re: Help ! 6V6 tube question
Date: 7 Nov 1998 00:21:08 -0600
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On 7 Nov 1998 05:00:32 GMT, myship00–(at)–ol.com (My Ship007) wrote:

>What is the difference in 6V6GT,6V6GTA,6V6GTY and 6V6GT/G ?

6V6-GT and 6V6-GT/G are the same thing. Older version of
6V6, made prior to 6V6-GTA. The “GT/G” designation is
to indicate it can replace the even older 6V6-G.

6V6-GTY: Same as 6V6-GT, but with a brown or yellow base.

6V6-GTA: Newer version (introduced ca. 1960), with improved
plate dissipation (14 vs 12W) and plate voltage (350 vs 315V)
ratings. Usually has grey instead of black plates.
7408 is an industrial number for 6V6-GTA, they are interchangeable.

>What would be the
>best replacement in a ’67 Deluxe Rev. ?

If I were you, I would be more concerned with getting good quality
6V6-GT or GTA than the exact numbers stamped on the side, anyone
with a silk screen machine can slap “6V6-GTA” or “7408” on any old
piece of shit, and it’s been done, too.
I kid you not, I’ve got a smokeball Sovtek 6V6-GT right here on my
desk that’s labelled “Mullard 6V6-GTA Made In England”.
It was even labelled Mullard by the company that’s got a license
to use the name.

The Groove Tubes so-called “6V6-HD” is actually a cheap 6L6,
not a 6V6.

Mainly, if you avoid Chinese or Russian 6V6’s , you’re OK.
Any good US or West European 6V6 will do just fine,
6V6-GTA (or some of the later European 6V6-GT, apparently
they never went to using the “6V6-GTA” designation)
will handle more bias current before they red-plate.

As to what sounds best, you’ll hear a lot of opinions, you might
try going to http://www.dejanews.com and read some of the
previous threads on the subject.You’ll notice there’s more
discussion of the brands and vintage of the tubes, than
exactly which number got labelled on them.

Ned Carlson Triode Electronics “where da tubes are!”
2225 W Roscoe Chicago, IL, 60618 USA
ph 773-871-7459 fax 773-871-7938
12:30 to 8 PM CT, (1830-0200 UTC) 12:30-5 Sat, Closed Wed & Sun
http://www.triodeel.com
Your Start Page for Tube and Tube Amp info on the net…
http://www.triodeel.com/tlinks.htm

 

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