Portacolors & other low priced compactron sets I can see
needing it. I doubt they were dialed in as close when new then
add to that extreme age......
Reason I am negative on it is mostly practical, it wasnt a hobby
back then & had to make a profit while keeping cost down.
The first day on the job I was told NEVER touch the IF coils
see me first.
This set should be pretty hot, it has almost the same tube
compliment as a Zenith. One thing to do first IMHO is sub
the tuner & IF tubes one at a time with the aim of getting a
VERY strong off channel snow with nice flakes not streaky.
That can make a huge improvement. If I went on to an
alignment I would change the 3 IF's with known good new
ones also.
73 Zeno