Another vote for Brent Jesse. Having said that, different tubes have different tonal qualities. So when you call BJ, let them know just what you’re looking for.
All the best.
Tube rolling newbie- how to choose NOS tubes
I’ve purchased a xDuoo TA-30 dac/amp for my first tube rolling experience. From online reviews, I plan to tube roll in a Matched Pair of Mullard 12AU7.
Looking online, there are new reissued Mullard 12AU7, matching NOS tubes at various price points, years, features (like long plates?), and used tubes like on eBay.. This is confusing, how do I choose? Should the tubes be tested? Who should I purchase from?
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@facten Credible vendors do almost same but from different "position". Didn't you know that there are so many positions that you can get "poked". Read the ENTIRE Kamasutra to gen an idea how :) |
Be warned...new production Mullards are not the real Mullards. A major manufacturer of tubes in Russia bought the name. They have no semblance to the sonics of NOS Mullards which were manufactured in UK or by their parent company Philips, Holland. Start with Brent Jessee, knowledgeable and very accessible. Andy at Vintage Tube Services sells primo tubes, but last I checked, there was a three month wait for fulfillment. |
B E F O R E you do anything, find out what the tubes do in the circuit:
NOS tubes can be gassy and take a while to come to life... or may never 😞 See 5963Match.png (605×341) (ielogical.com) and 5963MatchDelta.png (605×341) (ielogical.com). This is four NOS 5963 [similar to 12AU7] used as a driver stage in two amps. There are 24 possible combinations of these tubes. Each combination sounds different. And read ieLogical Rolling
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