What's the difference between the 12AU7 and the 12AU7a? I forget (if I ever knew). Any idea roughly how many hours they might have on them?I've got a pair of 12au7a Webcor branded, I believe I also have a pair of Webcor branded 12au7 as well.
Mmm.... I'm running some of the 12AT7 version of those elsewhere and really like them.I've got a veritable shit-ton of RCA black-plate 12AU7s if you are interested. They're all pulls from Tektronix signal-generation gear.
I don't have a working tube tester any more, but if you want me to send you a few, you can pick the two closest-matched and send the others back.Mmm.... I'm running some of the 12AT7 version of those elsewhere and really like them.
I'm on the south side of the border - in Canada.... how it works in this neck o' th' woods.What do you consider "nice"?
I can send you a coupla clear-tops if'n you want. Organ pulls, they are what they are -- but the price is right (i.e., free).
You are someplace in the US of A, yes? I... umm... forget.
Anyway, send me a PM if'n you'd like a pair & I'll go disinter some.
I seem to recall something about some Mullards hanging out around your place... Mullards work really well in the PV-12. My all-time faves in this pre were these:Hmmmm
I have a few kicking around.
Let's me see.
E
I know there are a pair of very low hour Mullards CV4003s. These guys:
Mullard CV4003 / 12AU7 Vintage New Old Stock
I'd love some. "Nice" is "sounds nice" in these parts. I'd eventually like to have a little collection of types to try in it. Until now it has mostly been one set, those die, get another etc. The only tubes I tried that really absolutely did not work were JAN Phillips. Ditto the same in in 12AX7 in my phono pre. Not really the best way to go about things!What do you consider "nice"?
I can send you a coupla clear-tops if'n you want. Organ pulls, they are what they are -- but the price is right (i.e., free).
You are someplace in the US of A, yes? I... umm... forget.
Anyway, send me a PM if'n you'd like a pair & I'll go disinter some.
I've been getting things sent to John in Ferndale lately as my usual location went south.I would happily give you your choice, from my caddy, but, alas, I have none left.
Where have all the triodes gone?
Gone for guitar amps, every one.
Sorry. Timing is everything.
@mhardy6647, I believe that fiddlefye has a US mailing address. Otherwise, I think shipping, directly to our fair city, from yours, is about $10USD, for an 8-ounce package, something about 4x5x6.
Yes, 5751s.... life happened and I managed to get completely baffled on that topic.....Likewise, let me know if you want to try the RCAs. John call always send back the extras with the 5751s.
I would happily give you your choice, from my caddy, but, alas, I have none left.
Where have all the triodes gone?
Gone for guitar amps, every one.
Sorry. Timing is everything.
They are, at least by me. Not that easy to get these days and not cheap. I lucked into a couple of sets from that famous stash, but they're done....Those Brimar CV4003 are supposed to be without equal for the CJs, aren't they?