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PostPosted: Mon Mar 27, 2017 7:08 am 
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Joined: Sat Feb 11, 2017 11:12 am
Posts: 2
Location: Montréal, QC, CA
Hi all! Someone have done tube rolling of the Unison Research Triode 25 Amplifier ?
What are your experiences?


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PostPosted: Mon Mar 27, 2017 11:57 am 
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Joined: Sat Nov 10, 2012 8:39 am
Posts: 50
Location: deltona, FL, US
are you referring to all the tubes or ?

i would give andy a call at Vintage Tube Services and tell him what you have and what you are looking for sound wise and he will recommend some nice tubes for you.

http://vintagetubeservices.com


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PostPosted: Tue Mar 28, 2017 5:52 am 
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Joined: Tue Feb 28, 2006 5:40 am
Posts: 22
Location: Hamilton, ON, CA
If you wish to go down the murky road of NOS tubes, make sure you buy from a reputable dealer (such as Vintage Tube Services mentioned above).
I've seen far too many amps that contain so called NOS tubes that were not, or that were seconds from 1960 and were noisy, or not to spec.
A good dealer can also help you make an informed choice. Everybody has an opinion on what's best.
I'd also start with the small signal tubes first.

_________________
Dan Santoni
DTS Audio Electronics
http://www.dtsaudioelectronics.com


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PostPosted: Tue Mar 28, 2017 9:56 am 
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Joined: Sat Feb 11, 2017 11:12 am
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Location: Montréal, QC, CA
Thank you for the warning. I'm interested in any tube rolling of the 3 types included: 2 x ECC83 (12AX7) 1 x ECC82 (12AU7) 4 x EL34 (6CA7) with special interest in EL34 and 12AX7 rolling. I really like the NOS's sound. My tube phono preamp has now two 1975's Voskhod 6N23P, and the sound is fantastic.


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PostPosted: Wed Mar 29, 2017 1:01 am 
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Joined: Sat Nov 10, 2012 8:39 am
Posts: 50
Location: deltona, FL, US
Quote:
with special interest in EL34 and 12AX7 rolling


as I mentioned earlier, I would give Andy a call and let him know what you are looking for. any of us could recommend a tube, but just because we like it in our system doesnt mean that you are going to like it in yours. not all equipment that uses tubes sound the same either.

you can browse his site to get an idea of what he has / prices.


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