Question about power tubes

  • Thread starter Thread starter mark-anthony
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mark-anthony

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Hi everyone, hopefully someone can help me with this.
I was playing on my Diezel VH4 and then the sound seemed to sound completely different. I looked in the back of the amp and noticed that the fuses for v3 and v4 power tubes were lit, so I put in new fuses, and when I turned the amp back on again the fuse for v3 power tube stayed lit. So it burned again which led me to assume that powertube 3 was burnt and that powertube 4 was fine except that one had an issue with the previous fuse.
So I went to the music store and bought a matched set of EL34s, however the store didnt have Ruby EL34HBTs in stock, which is what my amp came with when I bought it brand new, so I bought JJ EL-34s.
My question is, will my sound change drastically if I have the original Ruby EL34HBTs in V1 & V2, but then for V3 & V4, they are the JJs?
I noticed as well that the JJs do not say HBT on them.
Thanks for all the help
Mark
 
you might get a small change in tone but nothing to drastic
 
A matched quad/tubes ( four in the VH4 ) of the same brand is my little suggestion. ;)
 
In your case, I think it would be a better idea to use the pairs in V1&V4, and V2&V3. This way you will have two different pairs, but with every pair matched.
 
I believe Papa's recommendation will be - ALL new matched quad with a proper re-bias.

But good luck,
V.
 
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