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RE: I agree with Pats findings........

Agree with the posters above, but the E80CC has to be OK'd by the manufacturer, it's not always a drop in, as far as I know.
The best 12AU7 examples I know of are:
- Hivac - long, smooth plates, square getter (lucid, warm, extended, sweet)
- Mullard - the long plates square getter is supremely superior to the later, short plates round getter (warm, fat sounding, liquid, slightly rolled off in the extreme highs)
- Amperex Holland long plates square getter, much, much better than the later short plate round getter (just like the Mullards above but without rolled off highs)
- Siemens silver plates (the best for everything, except don't do warmth, liquidity and fatness like the Mullards)
- I personally like Telefunkens, I don't find them thin sounding, and I like fat sounding Mullards, too. They give you a different perspective, that's all, I find them very extended up and down with a very liquid, not warm, but deliciously liquid midrange.
- CBS/Hytron 5814A black plates square getters. You can't go wrong with any American made 12au7 that has black, long plates and square or horseshoe getter, like Raytheon, GE, RCA.
- Cleartops RCA are a must try just to realize how much they lack the refinement of all the tubes mentioned above. But I prefer them to the short, grey plates round getters.
Of course, there are others.


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  • RE: I agree with Pats findings........ - romandoc 08:21:50 03/10/12 (0)

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