Author Topic: Another variant PP UL Oddblock 6П3С & ECC85  (Read 806 times)

azazello

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Another variant PP UL Oddblock 6П3С & ECC85
« on: June 15, 2010, 07:32:28 PM »
http://picasaweb.google.bg/azazello52/Amplifiers#5482681785581991970
Ia = 52 ma per tube
Output transf. from bulg. tube PP UL radio "Simphonie", 60-s.
Main transf. TS-200 from russian tube TV "Temp"- 60-s.
Hi end is back proportional to the number of composite parts!

azazello

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Re: Another variant PP UL Oddblock 6П3С & ECC85
« Reply #1 on: July 04, 2010, 09:07:48 PM »
I changed 6P3S to EL34 Mullard /matched, used/with current 60 ma for each tube.
My prestage now is not SRPP, but parallel triod  with current 10 ma /2x5/ that I like, because
the mode is enough linear in the middle of curves. Now Ri also is smaller for the sake of parallel
con. and bigger current. :) 8)
Hi end is back proportional to the number of composite parts!