Repair service help for a ferguson 991T

[AdrianPH]

I can post a new picture tomorrow, but I had some in a thread on the other forum here is a link to the post with the pictures before a tube change.
https://www.vintage-radio.net/forum/show...?p=1300461&postcount=126
I do not have the brightness as high now so not as pronounced.

Adrian

p.s. it was pronounced as ringing in that thread.