i put the power resistor for B+ on the free pin6 to pin4!
phase inverter is pin3 with pin8 connect...
i think for the clean headroom is 500 V good or not?
raffa
EDIT
okay guys finally the amp is done and work very well....yes!
i made another filter stage in the power section and put the volltage for C+ to 400V.
charpy and vitriol82 hint was correct! the coupling caps were the source of error! i installed some caps with 400v volltage instead of 630v -> changed the caps and voilà! the amp work!
thank you guys for your support and some pics will follow!
merci beaucoup
rafael
