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Post by VomHalen on Jul 27, 2008 7:11:29 GMT -5
gentlemen, just picked up a used nitro...it's coming with KT77s...are EL34s or EL34Bs a direct replacement without blowing up the amp?  |
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Post by fastredponycar on Jul 27, 2008 8:03:20 GMT -5
yes they're all considered EL34's.
I've got a quaret of ruby KT88's on the way. gotta run out to radioshack sometime this week and pick up one of the little 47K 1/2 watt resistors needed to give the amp the correct bias range for these higher wattage tubes.
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Post by VomHalen on Jul 27, 2008 11:45:43 GMT -5
yes they're all considered EL34's. I've got a quaret of ruby KT88's on the way. gotta run out to radioshack sometime this week and pick up one of the little 47K 1/2 watt resistors needed to give the amp the correct bias range for these higher wattage tubes. thanks for the info red...good luck with the KT88s |
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Post by fastredponycar on Jul 29, 2008 16:04:36 GMT -5
out for delivery!
Results tonight
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Post by dukeofmetal on May 18, 2009 23:43:22 GMT -5
hey guys,
whats the recommended bias range for EL34s in the Nitro? I realized I have some older SED Winged =C= EL34s that I'd like to try in there.
Thanks
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Post by snappinnecks on May 22, 2009 12:16:31 GMT -5
30-32 MA
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Post by dukeofmetal on May 25, 2009 12:27:13 GMT -5
Thanks!
What about bias for KT77s?
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Post by snappinnecks on May 26, 2009 13:36:46 GMT -5
Same on KT77s. 30-32MA.
Ruby EL34STRs are the best in a Nitro. Call Doug at Dougs tubes and talk to him about them. He'll send a good matched set.
I tried Tung Sols and they didn't have quite the sack that the Rubys did.
I like Tung Sols in a Quick Rod though.
Rubys in a Quick Rod. Eh. Not as good as in a Nitro.
I think someone on here has tried Wing Cs and didn't care for them in a Nitro.
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Post by dukeofmetal on May 26, 2009 16:07:15 GMT -5
Same on KT77s. 30-32MA. Ruby EL34STRs are the best in a Nitro. Call Doug at Dougs tubes and talk to him about them. He'll send a good matched set. I tried Tung Sols and they didn't have quite the sack that the Rubys did. I like Tung Sols in a Quick Rod though. Rubys in a Quick Rod. Eh. Not as good as in a Nitro. I think someone on here has tried Wing Cs and didn't care for them in a Nitro. Anyone can compare the Ruby EL3STRs to the JJ KT77s? |
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Post by dukeofmetal on Jun 16, 2009 21:15:21 GMT -5
hey guys,
can someone remind me which trimpot(s) are for the Bias? I am gonna be trying some tubes in my Nitro and would like to bias it properly.
I have the Weber meter with the Probes.
Thanks
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Post by snappinnecks on Jun 17, 2009 7:38:32 GMT -5
It is the one with the small brass adjustor.
As far as 77s and STRs the 77s sound decent, but don't last very long. The STRs sound really good.
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Post by dukeofmetal on Jun 17, 2009 8:55:13 GMT -5
It is the one with the small brass adjustor. As far as 77s and STRs the 77s sound decent, but don't last very long. The STRs sound really good. Thanks! is there a value/number on the board I can look for to know exactly which it is? I might have to check into those STRs to see what they're like. I have a set of KT77s and SED =C= EL34s coming back to me from testing. I am going to test both and hear the difference. |
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