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In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.
Post Subject: Triode 3-StagePosted by Paul S on: 4/17/2011
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N-set, starting from reasonable input, the 6E5P can swing some serious voltage, and Romy also sings its praises in terms of sound. Maybe sim that, running it in its safe zone to a 6C33C. From there, you have all the power you'd want to drive -- whatever. Basically, I'm supposing that linear operation, in practice, is likely to work out better than a pushed 2-stage, given the working constraints of SET power in the first place...
I have no personal experience with the 6E5P, and so I don't know how well it holds its values over time; but I can say that the 6C33C will pass on what is fed to it, as long as you can keep it tuned; basically, "fixed bias" needs to be monitored and adjustable.
How does the Dutch guy consider/deal with self/parasitic noise? Maybe figure on all-shielded hook-up wire bled via a dedicated ground... Also, I recently saw (then promptly forgot about...) a "new" composite shielding material that "offers the best of steel, aluminum and Mu metal", yet it can be bent, etc., even grounded.
Did you find those caps yet?
Please correct me if I'm wrong, but it appears to me that you are in love with "transformers". Maybe parallel tubes are a way to boost power and drop output impedance at the same time, versus bigger tranny, with its own ramifications, etc. No Free Lunch...
Best regards,
Paul SRerurn to Romy the Cat's Site