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I bought a quad of SED EL34. They are not really that old, maybe 10 hours of play time on them. Today I noticed that the 2 center tubes are glowing blue. 1 of the tubes is a blue color near the base and the other is blue near the top of the tube. I dont notice any tone loss or change at all. Is there a problem with these tubes? If I turn the standby switch on the blue goes away and the tube just looks normal to me. As soon as I turn the standby switch off the blue color comes back. What do you think?
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Re: tube question.
Until Pete gets here...
No worries. Some tubes burn blue. -
Re: tube question.
Yea, thats what im hoping. I just never noticed it before. It looks almost like someone is holding a lighter near the tube and its the reflection of it.Comment
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Re: tube question.
I found out its normal for these tubes. Thanks guys.Comment
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Re: tube question.
it is normal if the tube reacts the same in other tube sockets. If not maybe the bias is off????shawnlutz.comComment
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Re: tube question.
No, the blue he's seein is actually oxygen getting into the tube. If it was glowing red, then I'd suspect bias.Comment
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Re: tube question.
ah..thanks Chuck.shawnlutz.comComment
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Re: tube question.
Hey Paul, How do you like those tubes so far anyway? Give a review.Comment
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Re: tube question.
Hey Chris, I love the SED EL34 tubes. Very rich and creamy sounding. I have them im my Cameron modded JMP. The mod was done around these tubes and I really like to stick with them. They breakup really nice when pushed and have a great reaction with the gain structure of this head. I also like the JJ EL34. The JJ are a bit darker sounding but also hold thier own. I guess it really depends on what type of amp you are puting them in. If I were you I would give them a shot. If you dont like them ill buy them from you. I can always use a backup quad.Comment
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Re: tube question.
If it's red they are dead, if it's blue then uh, shit, can't come up with a rhyme for blue. [img]/images/graemlins/smile.gif[/img]Comment
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Re: tube question.
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If it's red they are dead, if it's blue then uh, shit, can't come up with a rhyme for blue. [img]/images/graemlins/smile.gif[/img]
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Ummm...if its blue...good for you?? [img]/images/graemlins/tongue.gif[/img] -Lou" I do not pay women for sex. I pay for them to leave after the sex ". -Wise words of Charlie SheenComment
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