It looks like it is based on the AC-100, which I have a schematic for if you need it.
Thanks for looking, but I have all the different AC100 schems. The V series made from 1970 to 1973 only have one preamp tube, one driver and a quartet of EL 34´s - that´s the one I´m looking for.
Amazingly, I only found one picture of the amp on the net - from the Vox showroom in USA.
The guy that was credited for the photo´s on that page, was a Norwegian amp repairman that lives not too far from me.
Weird. I sent him a mail, I´ll see what he comes up with.