Ferrite yoke horn for vertical. Note interior view of those ferrite horn has no "poles".
http://www.google.ca/imgres?imgurl=h...w=1061&bih=846
other picture of what I'm talking about the ferrite horn with vertical winding installed.
http://www.o-digital.com/uploads/222...1992GL_430.jpg
As you can see internal view of the bare ferrite horn have no "poles" to project the magnetic field yet vertical deflection worked. That what make me puzzled for awhile.
Oh, I repair TVs for several years at TV shop. Too bad no more CRT stuff. I like the challege compared to flat panel board swapping and bad capacitors.
Cheers, Wizard