Did a tube swap tonight with a tv tube whose yoke was almost a dead on match for a g07 yoke (a couple tenths of an ohm on the lower impedance and 1 or 2 ohms on the higher impedance). It looks great except for some pincushion on the left and right sides (horizontal monitor orientation). Not horrible but definitely noticeable.
I did a little searching and found reference to the possibility of improving a pincushion problem with changing a particular cap. The chassis has been recapped, but I'm assuming that reference meant that if you change the cap value it will alter the pincushion.
Is that method legit? If so, which cap? If not, is there anything I can do about it? Well, obviously it's possible to correct it, but it's a matter of whether anyone knows what it would take I guess!
I did a little searching and found reference to the possibility of improving a pincushion problem with changing a particular cap. The chassis has been recapped, but I'm assuming that reference meant that if you change the cap value it will alter the pincushion.
Is that method legit? If so, which cap? If not, is there anything I can do about it? Well, obviously it's possible to correct it, but it's a matter of whether anyone knows what it would take I guess!
