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  3. 1251227824

Tube rolling in Yaqin Pacific Valve Tube Buffer

A Shuguang 6N1 is included with the tube buffer from the factory. It sounds pleasant. An Amperex 6dj8 orange globe A frame I tried, sounded surprisingly thin and the highs shrill. I can only guess that the buffer is "voiced" for the supplied Shuguang 6N1 tube and NOS tubes therefore don't sound as one would expect.
I read that owners of Yaqin & Pacific Valve tube buffers have bee using JAN Philip green label 6922.
Does anybody have any other experience with tube upgrades for these tube buffers?
Thanks.
umn

Showing 3 responses by mcfarland

mcfarland
356 posts
 
I don't believe that a 6dj8 or 6922 is an equivalent of a 6n1. The 6922's, 6dj8's, and even the 6n1p are said to draw more current and eventually damage your transformers. I "googled" 6n1 equivalent and found Tube Depot saying that the 6aq8/or ecc 85 is an equivalent. Please check with your manufacturer before "tube rolling for damage" occurs. (Just my 2 cents worth).
mcfarland
356 posts
 
Well, then are you absolutely sure that the Amperex's are good tubes? Maybe after they settle in a bit, they will improve, but something sounds amiss.
mcfarland
356 posts
 
In my own personal experience, EBay tubes are for the most part, used junk. I have a tube tester (BK DynaJet), and would have to say that over half the time I buy tubes on EBay they are worthless, so cheap is the key to an EBay purchase. Also, I have found some of the so called "reputable" tube sellers on the 'gon to sell questionalbe stuff that they claim is still good. See if you can find someone in your area with a good functioning tube tester (electronics repair services may know of someone or have one themselves).
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