Hi
thanx for your post.
Yes, my leaks were checked by competent technician. I replaced ac terminals, all capasitors and electrolitics and tubes. Now they are in perfect condition.
As for tube rolling I also tried different options. In AI M3A there are 2 tubes in linestage and 2 tubes in phono. After my SF Line3 I got a lot of ecc88 tubes left: telefunken (my fav), mullard Blackburn, mullar Mitchem, Philips SQ, casual Philips Heerlen, Siemens...
It did not help though.