A newby with a question

[DaveWM]

Snow is raster, no signal to modulate the crt beam.

you will need a 75-300 coax transformer to connect the cable to the vhf input on the tv.

select channel 3 or 4 and try adjusting the fine tuning which is prob part of the tuner, the outer ring. you may need to push in as you turn, however I am not familar with that model.

Now back to the TV a few questions, has it been gone over by someone that knows how to repair old tv's?

If not you should stop trying to use it until it has. You can do damage to the set, not to mention the possibe fire hazard. These old set can be repaired and work well, but there are parts in there that are 50 yrs old and long past the normal service life.

[Eric H]

Did you use an RF modulator with the DVD player?

My apologies if you already know this but you can't hook the composite output of a DVD player directly to the Antenna connector of the TV, same with the Cable if it's Digital or the Box doesn't have an RF output.

Otherwise what Dave says applies, try the fine tuning, try rocking the tuner back and forth, sometimes the contacts inside are dirty after 50 years.
Do you get any kind of noise from the speaker, static, white noise?

[DaveWM]

oh and the fact that you get snow is a good thing, that means you have a functioning high voltage/sweep/yoke. a screen pic of what you are seeing would be helpful. Just remember only for a very short time until you get it looked at. Worst case is you can burn up something that is hard to get, like the power transformer or flyback transformer. If those go its gets expensive. where you are now is pretty good, esp if you get sound.

If your handy and have some electronics background or are are just wanting to learn, the folks here can prob talk you thru it. It would be good if you have used a soldering iron before and have a basic understanding of electric circuits, but not a requirement. You can learn a lot by just reading.

Warning, old set have dangerous high voltages, enough to really cause you some serious bodily harm, even death, so if you are not willing to be EXTREMELY careful then its best to leave it to some one that has the knowlege and tools to fix your set. The sets cans store a signifgant charge for quite a while, and the CRT's have a very real implosion concern. Not trying to scare you off, but since we have no idea of your background or skill set its important to let you know what you are dealing with when you remove the back of a set.