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In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.
Post Subject: Seems I'm semi-prepared...Posted by N-set on: 3/21/2011
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I have huge AMCC800A cores for two such transformers
and good winders with HV experience. I also have a lot of
quiality coax cable, good to few kV for the chassis hook-up.
Again, if somebody is willing to take care of that, I can lend.
I'm myself 3000km away from the Mastodont.
The signal trafo is "easy", the biggest problem is the PS. 2.5kV of clean power costs.
If one wants a FW rectifier then the voltage swing on the PS trafo would be
huge. Bridge may be an option but:
1) higher effective resistance; some people "report" it matters on bass, but no 1st hand exp.
2) implementing 4 rectifier tubes is a PITA; I have separate heater transformers
for 4x872A, all the sockets, etc. I'm not sure how my caps are rated, some are 6kV I think.
Getting HV caps in EU is a PAIN. I think my PS chokes should stand the voltage.
One would have to either rewind my tranny for 2.5kV (my winders would do that)
or wind a new one. I have also 120W DC heater supplies (choke input I think).
Ok, I've found the diagrams.
Here is what I have modelled (for one channel so far, and R-loaded VR in the bias). It's all huge, but perhaps can be optimized.
Any takers??
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