1950s or '60s vintage Zenith TVs, Need some info

[zeno]

Run the set a few mn & see if the tubes get hot. Its pretty
rare on a parallel filament set to get an open tube never mind
two of them.

Next run set. Change channels. You should see & hear a lot of noise
from the switches making & braking.
If you dont its father down the line, prob one of the IF tubes.

73 Zeno
LFOD !

[vortalexfan]

Well I put the set back together ran it for a little bit and all I'm getting through the speaker is a very pronounced "vertical Oscillator" noise through the speaker and some very faint white noise coming through the speaker, I have a converter box hooked up to the set and and I was going through all of the channels and I wasn't getting any signal through whatsoever, not even the backlight bulbs for the tuner are working but yet the motorized tuning is working (you push the button on the front panel of the TV and the tuner advances through the channels as it should) but since the pilot lights aren't working I can't see what channel I'm on.

Also as far as the picture goes, I can't tell if the vertical and horizontal hold are adjusted correctly because I can't see the lines from them on the screen because its just a bright grey color and you can't see any snow or anything on the screen..