"Brenda Ann" wrote in message
...

"maxhifi" wrote in message
news:U5fsi.22399$_d2.19727@pd7urf3no...
change it to a bridge rectifier across the whole 250V winding, and
everything should work fine!


*repeatedly kicks self in arse for not thinking of that in the first
place.... * It did clear up almost every issue I was having. Next thing I
think I'll do is add negative feedback.



you can also delete the capacitor feeding the grid of the second half of the
12AT7 - the one on the plate of the first half is already blocking DC.