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In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.
Post Subject: 833 DC to 833?Posted by N-set on: 3/26/2011
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Actually those fantasies may come true one day...I may be wrong, but I think
the tube-speaker interface is more important than sticking to 2 stage topology?
2 stage => high-mu output tube => high Rp, low controll over the array.
But, if you insist, perhaps 833 driving 833, DC coupled may do the trick?
More elegant than 10.000 6C33C 
At 2500V/100mA 833 seems to have approx 4k Rp => 130H. Not bad
Worse as a driver with 4k output impedance...The driver choke loaded of course. 200-250H
872A FW and low DCR PS chokes should give a good PS.
Caps are the problem, esp. in EU, but perhaps 100uF/3kV are obtainable?
Doubling it and stacking will not be easy...Would be happy to go along with one supply only,
like in your MF, but decoupling at 5Hz....lots of uF@3kV
BTW, there is the beefed up version of 833 -- 833C with 550W max forced air cooled!
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