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Wally · April 18th, 2008, 10:46 AM

IF you like the dynamic nature of the 5E7...touch sensitivity....and want to experiment, try some punchy ceramics...10F125's or 10F150's... in that amp. I don't know what Sovtek tube you are running or what preamp tubes you have in there, but some JJ or CED 6L6's with proper biasing might yield firmer punch and headroom if they are properly biased.
Are you running a 12AY7 in V1? If you have a 12AX7 in that position, that tube yields a lot of gain in that circuit/position. There won't be much headroom with a 12 AX7. Even a 12AT7 would help there, but the 12AY7 is the tube that the schematic calls for.
All of these experiments are a lot cheaper than a new build. On the other hand, building a 6G16 shouldn't be a waste of time.

April 18th, 2008, 10:46 AM	#4 (permalink)
Wally Friend of Leo's Join Date: Mar 2003 Location: Lubbock, TX Posts: 3,769	IF you like the dynamic nature of the 5E7...touch sensitivity....and want to experiment, try some punchy ceramics...10F125's or 10F150's... in that amp. I don't know what Sovtek tube you are running or what preamp tubes you have in there, but some JJ or CED 6L6's with proper biasing might yield firmer punch and headroom if they are properly biased. Are you running a 12AY7 in V1? If you have a 12AX7 in that position, that tube yields a lot of gain in that circuit/position. There won't be much headroom with a 12 AX7. Even a 12AT7 would help there, but the 12AY7 is the tube that the schematic calls for. All of these experiments are a lot cheaper than a new build. On the other hand, building a 6G16 shouldn't be a waste of time.