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In Reply to: RE: Actually............. posted by drlowmu on October 18, 2014 at 20:57:10
~!
The Mind has No Firewall~ U.S. Army War College.
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Hi!
I only use the 6AH4 in a transformer coupled preamp. There the distortion is not as bad due to the rather low signal swing.
Thomas
I got good results with a CCS loaded 6AH4 driver but I would not use as an output stage . If I needed a mu=8 Ra 1.6k triode for an output stage , I would go for a triode connected 4P1L .
I think to get any decent linearity out of a 6AH4 output stage , local feedback would be required (OPTX secondary in the cathode circuit) .
Al
~!
The Mind has No Firewall~ U.S. Army War College.
Hi!
I just wanted to clarify how I use this tube.
Besides that I prefer to stay out of this discussion
Thomas
nt
.
Have Fun and Enjoy the Music
"Still Working the Problem"
So Thomas, if I may be so bold as to extrapolate from what you just said, if the 6ah4 was used as an output tube the harmonic distortion created by the 6ah4 WOULD be unacceptable (or at least "bad") do to the tube's nonlinearity at those higher signal swings?
Thank you.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
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