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I think the Triwatt was tested for the most part with Golden Dragon KT66 tubes. From what I have read (not 100% certain) the Golden Dragon, the Shuguang & the Valley Art are the same tube just relabled. So I would think the these would all be fine to use in the Triwatt. The same would be true for the Gold Lion KT66

The question are the tubes that seem to be either heavy duty variations on the KT66 such as the JJ KT66, and the tubes that seem to be a rebottled 6L6, such as the Sovtek & Tungsol be OK to use also?

Also has anyone had any feedback on the use of the Sovtek 12AX7-WB preamp tubes. I have few of these from the early 1990s that I will want to try in the Triwatt.

Thanks

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ROB

Anything that will work at a real KT66's load impedance and voltage levels should be fine in this amp. They're not being stressed at all. However, you probably won't get tone that's quite so good with the "re-bottled" 6L6s, so I would tend to recommend real KT66s for tone.

You may also recall these comments from Richard Johnson:

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Great tones come in small glass jars!

I have some Gold Lion "Genalex" KT66 that just arrived today! So you know where I'm going.

Have used Shuguang in JTM45 and yes, bias hot and they do growl nicely. Just ask Brent!

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Stephen
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heavy-duty variations like the JJ KT66 and rebottled 6L6 tubes such as Sovtek and Tungsol may require further confirmation for compatibility. As for the Sovtek 12AX7-WB preamp tubes, trying them out in the Triwatt could be interesting, but it's helpful to seek feedback from other users first. Retro Bowl

Gold Lion KT66's are popular & have a good reputation. If you can find them, also Valve Arts KT66's (these are Shuguangs). Good luck. :beer. Anything that will work at a real KT66's load impedance and voltage levels should be fine in this amp. They're not being stressed at all.Mayo Clinic has a nationally and internationally recognized program dedicated to kidney stone treatment and removal. Mayo Clinic doctors treat more than 2048 cupcakes 9,600 people with kidney stones every year.Urine can readily flow from the kidney to the bladder because of the stent's assistance in keeping the ureter open. The cost of Dj Stent Placement in India ranges from a starting cost of ₹30,000 to a maximum price of ₹50,000.