JumpMarine
18 watts of Mayhemologist
I know that it's fairly normal to have a blue glow from your power tubes, but is it an indication of a mismatched set to have only 1 with a blue glow?
Only 1 of a pair of 6l6's has blue glow.....
- Thread starter JumpMarine
- Start date
The Golden Boy
Fleecy Sweaterologist
Re: Only 1 of a pair of 6l6's has blue glow.....
I would say it's a bad thing. The tubes are a "push- pull" sort of thing... One tube does half the work, the other does the other half.
Here's a really great site about a whole lotta stuff...
http://aga.rru.com/FAQs/general.html#blueglow
I would say it's a bad thing. The tubes are a "push- pull" sort of thing... One tube does half the work, the other does the other half.
Here's a really great site about a whole lotta stuff...
http://aga.rru.com/FAQs/general.html#blueglow
JumpMarine
18 watts of Mayhemologist
Re: Only 1 of a pair of 6l6's has blue glow.....
Thanks GB, these tubes should only be a few months old but it may be another reason why the Valvekings are so inexpensive.
Thanks GB, these tubes should only be a few months old but it may be another reason why the Valvekings are so inexpensive.
JumpMarine
18 watts of Mayhemologist
Re: Only 1 of a pair of 6l6's has blue glow.....
These are the stock pair of Sovtec 6l6wxt's in the Valveking, who knows if they were matched properly in China? No arching, just a shroud of blue haze that would increase with the power draw. My only concern was because only one was doing this. I also don't really know how to check voltage values while it's on. I work with allot of high voltage wiring, but just plain don't know what to do with an amp and don't think that I should attemp it without supervision of an amp tech.
These are the stock pair of Sovtec 6l6wxt's in the Valveking, who knows if they were matched properly in China? No arching, just a shroud of blue haze that would increase with the power draw. My only concern was because only one was doing this. I also don't really know how to check voltage values while it's on. I work with allot of high voltage wiring, but just plain don't know what to do with an amp and don't think that I should attemp it without supervision of an amp tech.
DesertRose
New member
Re: Only 1 of a pair of 6l6's has blue glow.....
Check this out.
its beautiful, managed to take a nap shot of it before it turns yellow all again.
Its something like this
Its from my JCM900, 6L6EH tubes
Check this out.
its beautiful, managed to take a nap shot of it before it turns yellow all again.
Its something like this
Its from my JCM900, 6L6EH tubes
Re: Only 1 of a pair of 6l6's has blue glow.....
For what it's worth the Sovtek 6L6WXT+ tubes that come in the Valveking are notorious for not being closely matched. Someone over at HC measured about 10 mA difference in their pair. I yanked them out of my Valveking as soon as I got another pair to put in the amp. Got some JJ's in there now and it is a major improvement. Gonna try some SED 6L6's this week.
For what it's worth the Sovtek 6L6WXT+ tubes that come in the Valveking are notorious for not being closely matched. Someone over at HC measured about 10 mA difference in their pair. I yanked them out of my Valveking as soon as I got another pair to put in the amp. Got some JJ's in there now and it is a major improvement. Gonna try some SED 6L6's this week.
loudriver23
New member
Re: Only 1 of a pair of 6l6's has blue glow.....
Damned thats a beautiful sight all purple and sexy like that!!!
I love that tube glow.
DesertRose said:Check this out.
its beautiful, managed to take a nap shot of it before it turns yellow all again.
Its something like this
Its from my JCM900, 6L6EH tubes
Damned thats a beautiful sight all purple and sexy like that!!!
I love that tube glow.
JumpMarine
18 watts of Mayhemologist
Re: Only 1 of a pair of 6l6's has blue glow.....
Well, I got an email back from Peavey and here's what they had to say about the fixed bias:
"The fixed bias voltage is (-)55 volts. It uses Sovtek 6L6WXT power
tubes. You may use any 6L6 tube, however."
What does this mean? Specifically the (-)55volts?
Well, I got an email back from Peavey and here's what they had to say about the fixed bias:
"The fixed bias voltage is (-)55 volts. It uses Sovtek 6L6WXT power
tubes. You may use any 6L6 tube, however."
What does this mean? Specifically the (-)55volts?
Gearjoneser
Gear Ho
Re: Only 1 of a pair of 6l6's has blue glow.....
I've found that the older tubes get, the more they glow blue. When you pop in a new set, they don't glow quite as bright. Companies like Peavey use the best tubes they can get for the least amount of money, so it might be a good time to get a set of JJ's or SED's, and keep the stock ones as backups.
I've found that the older tubes get, the more they glow blue. When you pop in a new set, they don't glow quite as bright. Companies like Peavey use the best tubes they can get for the least amount of money, so it might be a good time to get a set of JJ's or SED's, and keep the stock ones as backups.
JumpMarine
18 watts of Mayhemologist
Re: Only 1 of a pair of 6l6's has blue glow.....
That's just what I was thinking of doing. Though I think that I may try out the TAD long bottle for about 4 bucks more than the SED's. Do you think that there would really be a noticable difference?
That's just what I was thinking of doing. Though I think that I may try out the TAD long bottle for about 4 bucks more than the SED's. Do you think that there would really be a noticable difference?
Gearjoneser said:
DesertRose
New member
Re: Only 1 of a pair of 6l6's has blue glow.....
next stop, SED power tubes.
next stop, SED power tubes.
Gearjoneser
Gear Ho
Re: Only 1 of a pair of 6l6's has blue glow.....
I don't have experience with TAD's, but I know that the small bottled ones are great for lowering the volume and headroom of Fender style amps.
I don't have experience with TAD's, but I know that the small bottled ones are great for lowering the volume and headroom of Fender style amps.
JumpMarine
18 watts of Mayhemologist
Re: Only 1 of a pair of 6l6's has blue glow.....
I went with the long bottle just for that reason, this little amp has a buttload of gain and I'm trying to tame it as much as I can. I've read that the long bottle has a bit more headroom than the other. I also ordered a JJ 6v6 for the Silvertone as it was starting to sound like it was playing through a blanket.
From The Tube Store:
[FONT=arial, helvetica]The TAD 6L6GC-STR is the perfect choice for the tone of the rock legends. The new 6L6GC-STR has a tight low end and has all the guts and bite to perfectly accomplish all the rocking sounds from SRV to modern NU-Metal. They have powerful deep bass and a clear, airy top end.
This TAD 6L6GC-STR combines the famous reliability of the American made Philips/Sylvania STR series, and the beefed-up black-plate system of the highly regarded vintage RCA 6L6GC tubes. The best of both worlds! Silky top end combined with deep bass response and lots of headroom make this tube a living classic.
The TAD 6L6GC-STR has an exclusive black-plate design, gold gird wire, double getter construction, no-noise filaments, and a 1.2mm thick heavy duty glass envelope.[/FONT]
I went with the long bottle just for that reason, this little amp has a buttload of gain and I'm trying to tame it as much as I can. I've read that the long bottle has a bit more headroom than the other. I also ordered a JJ 6v6 for the Silvertone as it was starting to sound like it was playing through a blanket.
From The Tube Store:
[FONT=arial, helvetica]The TAD 6L6GC-STR is the perfect choice for the tone of the rock legends. The new 6L6GC-STR has a tight low end and has all the guts and bite to perfectly accomplish all the rocking sounds from SRV to modern NU-Metal. They have powerful deep bass and a clear, airy top end.
This TAD 6L6GC-STR combines the famous reliability of the American made Philips/Sylvania STR series, and the beefed-up black-plate system of the highly regarded vintage RCA 6L6GC tubes. The best of both worlds! Silky top end combined with deep bass response and lots of headroom make this tube a living classic.
The TAD 6L6GC-STR has an exclusive black-plate design, gold gird wire, double getter construction, no-noise filaments, and a 1.2mm thick heavy duty glass envelope.[/FONT]
Gearjoneser said:
