ACME 300B matched pair - different blue glow intensity - new in amp world

wiaderki

New Member
Nov 17, 2022
2
0
1
45
Hi, I bought new pair matched ACME 300B.

Everything is perfect, but between tubes there is small difference in blue glow intensity (photo in attachment). Amp socket swap, doesn't change that. One is brighter that second one.

I know the basics (from where is this effect and why), but I don't have a practice..

Due tubes where quite expensive, I just wanna be sure that everything its fine, or this difference in blue glow intensity, mean something that I should worry about ?

Thanks for help

https://postimg.cc/gallery/dT5SNg0
 

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godofwealth

Well-Known Member
Feb 8, 2022
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873
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My Western Electric 300Bs also emit a blue halo. Nothing to be concerned about. It gives them a slightly psychedelic look. Not sure if the intensities are as different looking as yours, however.
 

Steve Williams

Site Founder, Site Owner, Administrator
Hi, I bought new pair matched ACME 300B.

Everything is perfect, but between tubes there is small difference in blue glow intensity (photo in attachment). Amp socket swap, doesn't change that. One is brighter that second one.

I know the basics (from where is this effect and why), but I don't have a practice..

Due tubes where quite expensive, I just wanna be sure that everything its fine, or this difference in blue glow intensity, mean something that I should worry about ?

Thanks for help

https://postimg.cc/gallery/dT5SNg0
My Western Electric 300Bs also emit a blue halo. Nothing to be concerned about. It gives them a slightly psychedelic look. Not sure if the intensities are as different looking as yours, however.
The glow of tubes is like the “smell of napalm in the morning “:cool:
 
  • Haha
Reactions: christoph

wiaderki

New Member
Nov 17, 2022
2
0
1
45
yes, blue glow its not a point - yes its normal.
the point is the difference in intensity - thats my concern, should be or should not ? :)
 

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