|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
24.15.32.233
In Reply to: RE: Well for one I would not use an emissions tester. . . posted by nick-seattle on June 15, 2012 at 21:25:56
What brand of tubes are these? It's important to know, because I probably have the explanation - if I know what tubes they are.
Follow Ups:
These are Ei 12ax7 tubes.
Okay, thanks.
The Ei quality was pretty awful towards the end of production - but I don't know whether that is what you are seeing. You may have tubes with cathode poisoning, and they need to "wake up" (by getting rid of the contaminants on the cathode surface) before they operate normally.
I'd recommend you run them for a few hours before testing them. And remember - the ultimate test of a tube is whether it works properly in a circuit!!
Thank you for all your help. I will continue playing around with the tubes to see if I can detect a pattern :) So far although they show below minimum on Hickok I'm loving them in my amp! Very surprised by the quality of sound.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: