Audio innovations valve query

[Davidcat]

I have picked up an Audio Innovations P2 phono amp in need of valves. No problem with most of them, but, looking down from above,there are a pair of ecc82 at the top, then to the left of them an ecc82 and an ecc83.
Does anyone know which way round they go? Obviously valve bases are the same, so that's no help. Ecc83 above or below when viewed from above.
Any help very much appreciated.

 

[Davidjohn]

I don't know this phono in particular but this link may help http://www.audionote.co.uk/articles/tweak_ai_p2_phono_mod_01.shtml