Selmer Truvoice TV15 but with KT33C and 6BR8

[mikeydee77]

The commonly available TV15 schematic http://www.vintagehofner.co.uk/brita...atic/tv15.html has 12AX7 preamp and and PL82 power amp. The one that I have in front of me I believe is an early edition with deck chair fabric based on some youtube commentator but with the same name. This version has ECC83+6BR8 pre amp and KT33C / CV1503 power valves. The amp I have is working OK and has been safely modified with a isolating transformer but I am curious to check a few things out so hence the ask or if anyone knows more about this version of the amp or if there is a similar model.

Oh yes I have googled it...