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Old 31st July 2010, 09:19 AM   #1
Green77 is offline Green77  Sweden
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Default 6sn7 subminature??

Hi all.

I just finish TriodeDick's Bill. Sounds fantastic But i'm thinking if there is a way to take away the ugly tube 6sn7
I'm thinking if there is a 6sn7 subminature.. it dosen't need to be a twin triode..i can use 2 tube's (one for each channel ). And of course it must sound as good as the 6sn7


Thanks //Daniel
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Old 31st July 2010, 09:36 AM   #2
Stixx is offline Stixx  Germany
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6CG7 is the electric equivalent to the 6SN7-GTB and sits on a noval socket...
what to you consider subminiature...?
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Old 31st July 2010, 11:05 AM   #3
bigwill is offline bigwill  United Kingdom
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Be sure to send me your "ugly" 6SN7s
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Old 31st July 2010, 05:09 PM   #4
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6021 isn't that far off -- mu is a bit higher, but rp is pretty similar and it can probably be used in many SN7 circuits with just a little adjustment.

Click the image to open in full size.
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Old 31st July 2010, 05:39 PM   #5
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Hi,

IIRC that's the only submin type that comes close.

Cheers,
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Old 31st July 2010, 07:54 PM   #6
Magz is offline Magz  United States
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These are what I used to replace my ugly 6SN7s, but you'll probably think these are even uglier!

7193 @ The National Valve Museum
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Old 31st July 2010, 11:33 PM   #7
kevinkr is offline kevinkr  United States
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Quote:
Originally Posted by dsavitsk View Post
6021 isn't that far off -- mu is a bit higher, but rp is pretty similar and it can probably be used in many SN7 circuits with just a little adjustment.

Click the image to open in full size.
I was just going to say, but you beat me to the punch.. Just don't exceed its rather low plate voltage ratings without some thought as leakage across the mica supports can lead to some rather interesting noises in some although not all instances. It is a reasonably good sounding tube IMLE.. (I have bunch waiting for the next project.)

IMHO The 6SN7 despite its size is pretty hard to beat, and I don't think the 6021 is in quite the same league. Besides we like big tubes, right?!
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Old 1st August 2010, 12:47 AM   #8
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Quote:
IMHO The 6SN7 despite its size is pretty hard to beat, and I don't think the 6021 is in quite the same league.
In the NOS dept., the 7N7 beats the 6SN7. It contains the exact same "guts" as the 6SN7s made by Sylvania at the Emporia, PA, plant. However, the price is more reasonable.

Seriously, the triode in the 6SN7 and its close relations is REVERED for very good reason. With NOS 6SN7 prices in the stratosphere, it's nice that 2 decent variants, EH and reissue TungSol, are in production at New Sensor's Saratov, Russia, plant.
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Old 1st August 2010, 03:32 AM   #9
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Speaking of nice dual triodes, has anyone tried/heard the 6C8G. On paper it looks very good, but in practice I don't know how it will sound with one of the grids being the top cap. I'm going to try one as a driver in a little SE. It may need a follower as it doesn't look too strong in the drive department. I have a ton of B+ available (over 400v) so a CCS plate load sounds like an idea.
Can't beat the retro looks of the bottle though
Best part is that they are still pretty cheap.

Gary
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Old 1st August 2010, 03:44 AM   #10
mach1 is offline mach1  Australia
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Quote:
I'm thinking if there is a 6sn7 subminature.. it dosen't need to be a twin triode..i can use 2 tube's (one for each channel ). And of course it must sound as good as the 6sn7
The 5977 (get the Sylvania Gold Brand version) would be perfect. Very similar spec except for lower plate resistance. I prefer it to just about any 6SN7.

http://http://tubedata.milbert.com/s...137/5/5977.pdf
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