I bought this kit last year but end up no time to build it. So I am selling it. It is running out of stock in DIYAUDIO Store now. $60 shipping within US 48 states.
https://diyaudiostore.com/collectio...-j-mosfet-and-jfet-kit?variant=39321292931145
https://diyaudiostore.com/collectio...-j-mosfet-and-jfet-kit?variant=39321292931145