Tube Amps / Music Electronics
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|previous: frankenstein Bruce: Thanks for your response. I ... -- 3/17/2002 5:32 PM||View Thread|
|3/17/2002 6:04 PM|
|Bruce /Mission Amps||Re: need more headroom|
My Soulkicker amp runs a similar PT, as does the 5E3 project amp, and most guys are reporting back the B+ running around 350vdc to 370vdc.
You should try using a SOVTEK 5Y3 now... it is much stiffer then a NOS 5Y3 and you should see a nice jump in B+. If that is not enough, try a SOVTEK 5AR4.
If when using either of the stiffer recitifier tubes the B+ gets up there higher, like our 5E3 project amp, consider using a 270 ohm biasing resistor instead of the 250 ohm one.
Don't be afraid of the B+ going as high as 380vdc (as measured to ground, not to the 6V6 cathodes). Bruce
|frankenstein Good Man Bruce !|