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Old 16th April 2013, 04:06 AM   #101
Gost22 is offline Gost22  Bolivia
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Lightbulb Yaqin SD-CD3 Tube Buffer

Hi all!
Do you must give informed schematic for this tube buffer: Yaqin SD-CD3 Tube Buffer?
Thank you and cheers!
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Old 18th April 2013, 05:23 PM   #102
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by Gost22 View Post
Hi all!
Do you must give informed schematic for this tube buffer: Yaqin SD-CD3 Tube Buffer?
Thank you and cheers!
Where is the schematic?
thank you!
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Old 18th April 2013, 05:31 PM   #103
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posting #94? What do you mean? Schematic with notes on voltage readings?
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Old 18th April 2013, 05:54 PM   #104
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by enjoybiking View Post
posting #94? What do you mean? Schematic with notes on voltage readings?
Oh yes, that's it .... instead of 6n8 schematic to put 6n1p-EV?
What should be the anode voltage + B =?
thank you and cheers!
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Old 18th April 2013, 06:56 PM   #105
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Default Socket adapter

Quote:
Originally Posted by Gost22 View Post
Oh yes, that's it .... instead of 6n8 schematic to put 6n1p-EV?
What should be the anode voltage + B =?
thank you and cheers!
Is not a 6n1p a 9-pin tube and the CD3 is wired with 8-pin sockets? You would have to replace the sockets or acquire/make 9 -> 8 pin socket adapters which are somewhat costly.

Two New Tube Adaptor ECC85 6N1P 6H1N to 6SN7 or 6N2P to 6SL7 Free Shipping World | eBay

Why not put in two premium name-brand 6SN7 or 6SN7GT? Done, 2 minutes!
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Old 19th April 2013, 04:44 AM   #106
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by konga View Post
Took off the tube guard and swapped in a pair of NOS RCA 6F8G tubes on adapters.

Click the image to open in full size.

Click the image to open in full size.
Hi Konga!
Where a schematic of this beaut??
thank you!
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Old 19th April 2013, 03:15 PM   #107
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by enjoybiking View Post
Is not a 6n1p a 9-pin tube and the CD3 is wired with 8-pin sockets? You would have to replace the sockets or acquire/make 9 -> 8 pin socket adapters which are somewhat costly.

Two New Tube Adaptor ECC85 6N1P 6H1N to 6SN7 or 6N2P to 6SL7 Free Shipping World | eBay

Why not put in two premium name-brand 6SN7 or 6SN7GT? Done, 2 minutes!
I'll put 6N7GT, it the sound gives ? We need some changes in the schematic?
thank you
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Old 19th April 2013, 03:28 PM   #108
zcables is offline zcables  United States
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No changes needed to plug in a pair of 6SN7GT tubes.
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Old 19th April 2013, 03:37 PM   #109
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Default S

Quote:
Originally Posted by Gost22 View Post
I'll put 6N7GT, it the sound gives ? We need some changes in the schematic?
thank you
This is I think the second or third time you have left out the "S"

6n7GT would be a different tube that exists but is probably wired differently.

You WANT a 6SN7 or 6SN7GT or maybe 6SN7GTBClick the image to open in full size.317 173 - en.wikipedia.org



There seems to be a good commentary on 6SN7 variants here:

https://www.tubeworld.com/6sn7.htm

There are some comments below about another more extreme MOD idea involving the 7193 single triode tube a MOD I may eventually DO:

AudiogoN Forums: Preamp Deal of the Century

More commentary about 7193 conversion:

6SN7GT vs 12au7 [Archive] - AudioKarma.org Home Audio Stereo Discussion Forums
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Old 19th April 2013, 03:41 PM   #110
zcables is offline zcables  United States
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Quote:
Originally Posted by enjoybiking View Post
This is I think the second or third time you have left out the "S"

6n7GT would be a different tube that exists but is probably wired differently.
Unless his line of questioning changes, I wouldn't give Gost22 the time of day...
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