classfolkphile
100+ Head-Fier
- Joined
- Jan 30, 2006
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Lansdale? I've never heard of them. Info? (Just out of curiosity).So the amp uses three 12AU7's or is it five? Would you say the voltage amp is the most critical?
These are among my favorites.
https://www.ebay.com/itm/124331759896?
I also have some RFT's I really like. Brimar CV 4003's as well.
Whatever you do, do not buy any tubes lol. Figure out what will help the most and I will see what I can do for you.
I do have some extras.
I've tried a bunch of 12AU7s in different gear (though not near all of the NOS ones). My favorites are the Radiotechnique 6189 (from '56 & '65), the various (NOS) Mullards (short plate CV4003 are better for drivers, regular and long plates better for DACs and pre-amp sections), Amperex, and RCA and Raytheon black plates (good everywhere). The RCA and Raytheon are still available at non crazy prices, the others not so much. Didn't care much for Sylvania, Tung Sol, Tungsram, Telefunken, GE, and Brimar (this last was the best of these though a bit wooly for my taste) but I didn't try many variations of type or year. YMMV.
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