ThEvil0nE
Headphoneus Supremus
- Joined
- Mar 30, 2010
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Me being a Luddite like the Vali 3 is 


12au7 and another wooden boxI just got a new wooden box to hold my tube collection (only a dozen or so, so far) and realized there's so much space that I'll need to fill. I haven't gone down the adapter route yet so that may be my next venture. Anyone have some suggestions on the type I should try out next?
I'll second what @ThEvil0nE said about 12AU7.I just got a new wooden box to hold my tube collection (only a dozen or so, so far) and realized there's so much space that I'll need to fill. I haven't gone down the adapter route yet so that may be my next venture. Anyone have some suggestions on the type I should try out next?
Red knob district
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6mmbtw what is the knob shaft size for vali3? 6mm?
12au7 and another wooden box![]()
I don't 3rd.I'll second what @ThEvil0nE said about 12AU7.
And then, after that, get a nice 6SN7 adapter (@Deyan makes great ones) to try those tubes out.thank you, I think?
You're being way too hard on 12AU7. The godliest, king of the meh zone has gotta be the ECG 6922. 12AU7 are a golden ratio'd hug for the ears compared to those thingsI don't 3rd.
Best to skip the 12AU7 meh zone... sure there are some good ones... but far more blah ones to fill a dozen wooden boxes. (Good ones: CV491, CV4003, G-73R)
Instead, I suggest getting the best 12AU7s ever created. Single section predecessors, 6C4/EC90/CV133/M8080 and more. These little twins will win your ears and your wallet. They're like 6J5s/L63 are to the 6SN7.
The under $20 a pair RCA 6C4s offer a bigger, more detailed presentation than most $200+ ECC82s.
You could stop right there, save space for Deyan's custom 6C4 to 5670 adapter and be happy.
But you won't.
Tube rolling isn't about ultimate happiness or even ultimate sonics... it's about rolin' rollin', rollin' - until the hide of your wallet is raw.
So... you'll want to explore the higher end of the family. Mullard M8080s are great step into the house of thermionic upper class twinning.
While the cheap RCAs best most every 12AU7, the M8080s best them all. More details, more 3D soundstage, just more enjoyable. To my greedy ears, at least.
Anyhow, I take it back... go buy many meh 12AU7s... enjoy them for what meh they bring... then when you grow restless of mehAU7, spend some more and roll twice as many!![]()
It is 6mm, but the shaft is not fully circular. It has, in part, a flat plane. For any volume knob with screw, tighten the screw aligned with that flat plane.btw what is the knob shaft size for vali3? 6mm?
Perhaps... but nah... not in comparison to the over-priced fancy 12AU7s, the cheap twin 6C4s are a far better value. Compared to cheap 12AU7s, the cheap 6C4s are just far better. IMO, of course.You're being way too hard on 12AU7. The godliest, king of the meh zone has gotta be the ECG 6922. 12AU7 are a golden ratio'd hug for the ears compared to those things