The diyAudio Firstwatt F6

no degeneration on the bottom and minimial(.05R) on the top, wictn zen pot across that .05, will yeild the most enjoyable results, IMO. If fets are matched, it will give it a negative phase harmonic structure that tends to throw a deep soundstage or gives the impression of looking into the recording. The more space behind the speakers, the better. Adjustment is about determining how deep you want this image thrown and front to back placment of instruemnts and players in that stage.
Audiophoolery OFF😀
 
6L6,
While I still plan on building P2P, will the CineMag fit the PCBoard? I may switch over to PCB when available. Finally got hold of David today, so I'm ordering the CineMag.

I believe Cinemag pinout is different from Jensen is different from Lundahl is different from Onetics. Tea Bag had adapters for his board. I would go with transformer you like and use short wire from transformer to board holes.

Best

Bob