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Posts by kevin gilmore

So that is 20 watts per fet, 40 watts And its at least 40 watts for the power supply per channel since the power supply is at most 50% efficient plus the rest of the power supplies, it is probably close to 90 watts per channel.
full power circlotron testing this weekend   target is 40 watts of heat per channel.   All 3 of the 1700V SiC mosfets are to247 cases so the final chassis work is going to be brutal.
there is no reason that it could not be, but I'm working on the solid state version first. The circuit would otherwise be identical. You just have to add floating filaments. Which means 4 extra windings on the transformers.
  That picture gives me vertigo. I like that. Thanks for the names.So it will be KGSSHV-CARBON edition  (very soon now)and KGSSHV-CARBON-CIRCLOTRON edition  (the power supply scares me)
el34 and 6ca7 are identical items.  kt77 is a bit different, rated more for extra current than voltage, I would not use those in a BHSE, bad things have happened in the past.
I don't make my Teflon jacks anymore, I buy them from Justin. A whole bunch easier. Although I did make a batch of male jacks.
piano counts right?   jelly roll morton   oscar peterson   art tatum   thelonius monk
i actually went to the trouble of building a rkv2. boards files available to anyone. Listened to it. Compared to many current amplifiers out there, its just awful. Very high feedback, high TIM design. (otl: lcd2,hd800,he6 etc) No way am i going to buy a verto to test it. just the passive music driven bias part alone is horrible fail.
el34ph not suitable as a replacement for pcl805 in rkv circuit due to very low B+.   only mikhail was nuts enough to do 650V B+ on an otl amp. (actually about 800V on one particular unit)   lundahl however is a great idea.  Costs a bunch more too.
 This has nothing to do with money. Nothing I do is cost effective. This is like timepieces.  There are timepieces, complicated timepieces, and grand complications. This thing is a grand complication. Just like the diy T2. Yes the transformers are a significant issue, and run of the mill stuff is going to arcy-sparky acrossthe secondary to the primary. This will require transformers that have 4KV wire and isolation. And I won't be doing microvolt noise 1000V power...
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