VFet SET headphone amp

Taking a break from tubes, one is naturally drawn to static inductive transistors. The specs are what tubes could only dream of and would enable the most compact two stage and high quality headphone/speaker/linestage. Luminaria was a great paper to get my feet wet and so an idea emerged, why not treat them like tubes? After much planing this project came to life:

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The resolution this amp brings was hard to believe and a punch in the face to my tubes4life mentality.
2SK79 is running at 4.5mA and should have 2K rp, the AVC takes care of the input capacitance of the 2SK82, not only is it a volume control but at my listening level the output impedance is well under 100ohm, Pass recommends under 600.

The UTC LC-33 allows for fine tuning of the output and input. The return to cathode works really well with the caveat of floating output.
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