Tube discussions

euan · Post by **euan** » Fri May 23, 2008 1:17 pm

Can't get into mediafire anymore to give you a link to my demo.

turtle · Post by **turtle** » Tue Jun 10, 2008 11:52 pm

euan wrote:Basically they make the tube noise quieter and there is some saying in that they will last longer because of it. There is an added extra something to them. Possibly by getting a cyro tube of a normal one you are actually getting better value of money over more expensive tubes.

On your reco I'm thinking of trying one of these.
any thoughts?

12AX7/ECC83 Ei cryo Phono 12AX7/ECC83Eicryoph USD29.95

We have a limited supply of Ei Yugo ECC83/12AX7. The latest version is shipping with gray oxide coated plates. We test for microphonics and noise and match into pairs when you order in multiples of 2 tubes. Please USE THIS GRADE FOR PHONO GRADE OR VERY SENSITIVE LINE APPLICATIONS LIKE COMBO AMPS WHERE ULTRA LOW MICROPHONICS IS NEEDED. The Ei tubes are great in your guitar and hi fi amps, as they produce a naturally sweet tone that most find very pleasing.Nice detail too. Tubes priced per piece. CRYO TREATED GRADE.

euan · Post by **euan** » Tue Jun 10, 2008 11:57 pm

Never heard of them. But go for it if you wish. That is bullshit about matching preamp valves into pairs. You want the quietest sweetest valve in V1 generally because everything goes through that gain stage.

turtle · Post by **turtle** » Tue Jun 10, 2008 11:59 pm

your reco as in CRYO TREATED

some places want sick money for them

Post by **Mike** » Wed Jun 11, 2008 7:58 am

Matched Preamp tubes? That's a new one on me. And it's complete shit. Like euan said, your lowest noise/microphony tube goes in V1. The rest you can play with and let your ears decide.

I don't even believe in matched Power Amp Quads. Pairs maybe, but even then it's not crucial as long as they're the same brand/model of tube.
A lot of it is bullshit to sell with.

turtle · Post by **turtle** » Wed Jun 11, 2008 11:31 am

well since I'm only getting one matching is N/A

NickS · Post by **NickS** » Wed Jun 11, 2008 11:37 am

I wonder, how well-matched are the two triodes in an individual 12AX7 or ECC83, typically?

Post by **Mike** » Wed Jun 11, 2008 11:43 am

Fairly well I think, although people will try to sell you a matched one for use in teh PI.

turtle · Post by **turtle** » Thu Jun 19, 2008 7:05 pm

Found a reasonable site Euan for cyro tubes
Thanks for you direction and providing interest.

I bought
Electro Harmonix 12AX7 Gold Pin Cryo Vacuum Tube NIB $18.95
12AX7 / ECC803 JJ Tesla Cryo Treated $17.99
2 Electro Harmonix EL84 / 6BQ5 Cryo + NIB $24.95

the site
http://stores.ebay.com/SaleRCS