Interesting curb side find: 1961 JVC

That is not a 5U4 socket. the deflection yoke plugs in there. you will need to fish the yoke leads out from behind the chassis apron

oops :p I didn't have time to even look at the TV this weekend, other than taking the back off, but that was it. The CRT was also unplugged as well when I got it.

I may attempt to slowly bring it up on power later this week then, see what happens.