I designed this about 10 years ago, it sounds amazing. you will need to etch two of these, one for each channel.
I used Russian PETP capacitors, they are a great allround capacitor, good clarity and warmth.
Tubes are the Raytheon Jan 6418 sub miniature pentodes.
I used Russian Teflon capacitors for the filters (0.022uf and 8200pf)
Download the files here: (to download right click and “Save As”
Power Supply for this project available HERE: