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Old 27th May 2010, 08:42 AM   #1
Galgo is offline Galgo  Israel
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Default Recommended upgrades for Yaqin Tube Buffer ?

Greetings,

I manage to put my hand on a mint Yaqin Tube Buffer with additional new tubes:
2X Telefunken CV4010
2X Valve electronic CV4010 KQDD/K

I believe the unit is the first edition (CD1!?) with two exposed tubes and point-point wiring inside.

I intend to use it between my computer analog output and the 6CH DIY Class-D amp (Tripath TA2020) in order to play and experiment with "tube" stereo sound (the buffer will only "sit" on the front L/R channels).

The speakers are KEF CODA 70 book-shelfs...

- Are there any recommended modifications for this unit (apart from trying different tubes) ?
Link will be great...

- Any suggestions on automatically controlling On/Off from the PC or the Tripath amp? (anything other than building a separate relay box) ?

How much current does it consume when "idle" - i.e. no input signal? (will it indeed consume full power anyhow?)

Regards,
Gal
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Old 28th May 2010, 04:28 PM   #2
Galgo is offline Galgo  Israel
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Anyone?
Is there already a discussion somewhere on this model?
How is it compared to some DIY boards i.e.:
Arjen Helder Buffer V2

Or if you have other recommendations?
Regards,
Gal
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Old 28th May 2010, 06:05 PM   #3
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Somewhere i have some comments (in email) & measures on this. It is a fairly simple cathode follower. It is made with relatively cheap parts, so there is room for improvement there.

dave
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Old 31st May 2010, 07:16 PM   #4
Galgo is offline Galgo  Israel
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Apparently I've got the second edition CD2 wit the two 6J1 tubes,
It actually looks pretty well built !
Any suggestions or interesting ideas?
What should I check? (groundings etc..)
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Last edited by Galgo; 31st May 2010 at 07:21 PM.
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Old 1st June 2010, 04:18 AM   #5
Cookj is offline Cookj  Belgium
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See this link;

Tube Buffer 6J1 / 5654 (6AK5)

Regards

John
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Old 4th July 2010, 02:47 PM   #6
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Quote:
Originally Posted by Galgo View Post
Greetings,

I intend to use it between my computer analog output and the 6CH DIY Class-D amp (Tripath TA2020) in order to play and experiment with "tube" stereo sound (the buffer will only "sit" on the front L/R channels).


Regards,
Gal
how is the sound when u plug this setup ? I too am expecting the amp wanted to know how quality when u hv something like 2ch source->yaqin->tripath->speakers. Do the mids sound mellow and bass is spot on ?
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