12 Valve AC30

[Ted]

I've got a 1992 Rose-Morris AC30 in front of me. It has 8 pre-amp valves and a semiconductor rectifier.

The valves are all labelled 'VOX' so I'm assuming they are the originals. There are a 5 ECC83s, 2 ECC81s and 1 ECC82
None of the AC30 schematics has this combination.

Anyone got any more information on these?