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I currently have a 65uF ClarityCap TC (bypassed with a 2.2uF Russian K75 PIO) in the cathode bypass position (Ultrapath implementation) for my 2A3 output tubes. I was wonder what kind of sonic differences might be heard (if any) by replacing the ClarityCaps with some NOS Sprague caps (the big honkin grey things). Since the large cap is bypassed with a 2.2 Russian K75, would there be any difference at all, sonically? Also, the Ultrapath implementation is supposed to take the cathode bypass cap out of the signal path (if I understand it correctly). So, maybe I am chasing my rear on this one.
Thoughts?
Follow Ups:
" Also, the Ultrapath implementation is supposed to take the cathode bypass cap out of the signal path (if I understand it correctly)."
The Ultrapath cap IS cathode bypass cap. (you did remove the cap between the cathode and ground?)
What a Ultrapath cap does is (effectively) remove the last cap in the power supply from the output tube's AC signal current path but the last cap in the power supply is now in the input (grid) signal path (along with the Ultrapath cap).
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Tre',
Given higher gain with the input tube doesn't that make less of an issue of removing the final cap from the finals signal path? (since its in the signal path of the driver tube doesn't that somewhat null the benefits)
I suppose a high impedance CCS on the driver tube solves that issue?
what do you think about using the ultrapath/WE cap with push pull? advantages there?
Sean
I don't know.
Getting the high current out of the cap might be better?
As for PP, see link.
Scroll down. Compare "Conventional PP" vs. Western Electric PP. It sure is a less complicated path(s).
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Thanks Tre'!
Tre - very helpful. I did remove the cap between cathode and ground.
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