|
Computer Audio Asylum Music servers and other computer based digital audio technologies. |
|
|
|
Computer Audio Asylum Music servers and other computer based digital audio technologies. |
|
In Reply to: Thats Well And Good....However Its After The Fact posted by Dynaudio_Rules on May 25, 2010 at 16:36:12:
I wouldn't buy from you either, in that circumstance. You have no way of knowing if your tubes are near death, or strong.
Many testers will give you a pass at 60% or 65%, my Triplett 3423 lists at 65% and I would tell this to the buyer, giving the transconductance number in my description and a percentage of life left.
This still doesn't paint the whole picture, because some tubes can be microphonic, more than others and even though a tube tests in the acceptable range, it still may have a triode that spits, or makes noise, so putting one in a circuit and mentioning that it's 'clean' is also a good practice.
I tested a pair of RCA (GE?) 5814As the other day, I think they were. All four triode were testing above 80%, with one tube being closer to 95%, but one tube 'buzzed' in my preamp.
Chris
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- That's why you buy from guys who have tube testers and can tell you which one they're using... - Chris Garrett 05/25/1021:19:26 05/25/10 (1)
- Good Info Thanks....nt - Dynaudio_Rules 04:21:23 05/26/10 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
