There are 2 different amps, but this amp will also have the tubes on top, on a different way.
The other one is (more or less) built as SOHA II prototype according to the specs, without modifications and running at lower B+ voltage (95V).
Jeff and I finalized them last night. The PCB house reported back two small errors as a result of adding alternate caps to the original board. We fixed those. So, without speaking for Jeff, I think the final production order goes in today. Send him a PM.
Originally Posted by GeWa /img/forum/go_quote.gif Am I correct that the main board is now so that the B+ multiplier is incorporated or will this be on a separate board?
(sorry if this was already clarified but I'm still a bit in holiday mode)
Yes, the new regulated HV B+ ~(55V-100V) is incorporated on the main SOHA II board. (There is thus no child board).