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|8th January 2007, 10:38 PM||#1|
Join Date: Feb 2004
Location: South Wales
6C41C in OTL?
Anyone else tried the 6C41C in an OTL-
Just lately, I switched over the 6C33C out of my circlotron otl and tried some 6C41C...
The amp usual set up is with 2 x 6C33C, with 190V +B circlotron supplies, cathode follower drive, from diff-amp F.B stage. I usually run the '33C at 75-100mA...Sound is just great IMO...
Decided to try the '41C for fun as I got a whole bunch cheap on fleabay.
Im trying just one tube per 'side' set at 100 mA. Initially they sounded really quite 'rough/coarse' Not at all like you would expect 'Half a '33C' to sound, and not really very pleasant.....
Decided to leave the thing run for a number of hours......
They really have 'changed their tune', now sounding more like the 6C33C at low to moderate volumes, and quite pleasing results...
I havent yet tried all the proper testing for power/dist etc. as its quite a problem to set all the gear up...Ill have to wait for O.H. next shopping-trip!
Usual power with the 2 X 6C33C, (one per 'side') is 56W, just before onset of clipping, so I expect around 12-15W running a single '41C per 'side'
I next plan 2 x 6C41C per side, Be interesting to see the effects....
All the tubes that I have, show remarkable similarity in bias-matching, Much closer than usually found with the 6C33C
Currently, These things are dirt-cheap on fleabay, Around 50 dollars for 10, in makers boxes, from a guy in the Ukraine....
Das Beste Oder Nichts
|9th January 2007, 12:36 AM||#2|
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
Just bought some to experiment with on ePay myself. Not quite sure yet what I am going to do with them..
"Extraordinary claims require extraordinary evidence." - Carl Sagan
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