I stumbled across this searching for a suitable preamp/driver stage for a pl36 se amp but the cathode follower confuses me... Details in the comments. : r/diytubes
PL36 (triode) SE | Page 2 | diyAudio
2 Röhren Valvo & Siemens PL36 Tube 65/80 mA Valve auf Funke W19 geprüft BL-1830 | eBay