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Jeff Wong's picture

That's pretty neat looking. Did you design the circuits and chassis?

kls's picture

I have done the complete mechanical and electrical design. The mechanical design was done on autocad in 3D, and circuit design was performed on pspice using custom tube models.
The circuit uses three 6H3NE russian tubes in parallel loaded with 6CL6 pentode current source with extreme linearity without negative feedback up to 45 Vpeak voltage swing. Measured distorsion levels are below 0.05% at 1 Vrms output to 10K load. All supplies are mosfet regulated less then 5mv peak noise at 350V DC.
Currently I am working on a tube phono amp.

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