Ghost Issue

[old_coot88]

Originally Posted by Penthode

Alas, you are incorrect. If the last IF tube was indeed bad as suggested, the ringing would change with the fine tuning adjustment.

You may be right, and probably are. It's been a lotta years ago, and I don't recall noting whether it correlated to fine tuning.
Just curious, how many cases of last IF ringing have you actually encountered? I've seen it in 3 stage strips as well as the oddball two stage (6EH7, EJ7) strips).