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
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.
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...