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-   -   Tube buffer with 6n1p-EV (http://www.diyaudio.com/forums/tubes-valves/234294-tube-buffer-6n1p-ev.html)

Gost22 17th April 2013 03:45 AM

Tube buffer with 6n1p-EV
 
Hi guys!
I need a quality schematics for buffer or project for my CD player with Russian tube 6n1p-EV.
Thanks for the help!

Bas Horneman 17th April 2013 09:27 AM

1 Attachment(s)
Here is a low voltage version I found googleing.

Google Afbeeldingen resultaat voor http://3.bp.blogspot.com/_uIURzAJc9_w/TUUf5S_9klI/AAAAAAAAASg/ykvBJV8o8_M/s1600/skema.jpg

JMFahey 17th April 2013 11:06 AM

Just curious, what's the purpose of adding such tube buffer in the signal chain?
I guess any CD player has low enough output impedance to drive most anything.

Gost22 17th April 2013 01:53 PM

Quote:

Originally Posted by JMFahey (Post 3457792)
Just curious, what's the purpose of adding such tube buffer in the signal chain?
I guess any CD player has low enough output impedance to drive most anything.

Hi,
Tube sound!!!;):violin:
cheers!:cheers:

JMFahey 17th April 2013 03:03 PM

Quote:

Tube sound!!!
I imagined so :rolleyes:
Ok, go ahead, it's your party. ;)

Gost22 17th April 2013 03:13 PM

1 Attachment(s)
Hi,
Is this tube 6N1P-EV can be used in the buffer or required some changes to the schematic?:confused:
thank you!

JMFahey 17th April 2013 06:33 PM

Build the one suggested in post #2.

The one shown in post #6 is a mess.

For the #2 one, you can get the +/-30V or thereabouts (it's not that critical, higher is better) from your power amp ... which of course I guess is not a Tube one.

By the way, I have commercially sold such tube buffers , under the brand name "Valvulizer" (tm) for those who insist on having some orange glow in their amps ... but I consider them a scam (yes, my own too). :(

Gost22 18th April 2013 12:48 AM

Quote:

Originally Posted by Bas Horneman (Post 3457709)

Hi Bas Horneman!
What should be changed in the schematics if the voltage is increased to +/-42V?:confused:
thank you!

JMFahey 18th April 2013 12:55 AM

I can answer that one: raise cathode resistors, R3 and R31 to 15K or 22K.
As I said earlier, the higher the voltage the better.
I used rails between +/-42V and +/-70V for what basically is the same circuit.

That tube (or most others) will be *really* happy with 160V (total) voltage or higher, so any step you take in that direction is fine.

Gost22 18th April 2013 02:20 AM

Power supply?
 
1 Attachment(s)
Is this power supply can be used?


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