Thanks for the help. I cleaned all of the tuner contacts, it was hard to believe how dirty these were. I substituded some tubes & found a bad one on the tuner section. I now have snow on the channels, it was previously gray on the channels - same as in between channels. I still can not tune a chennel but I'm getting closer. Removing the tubes next to the IF coil makes no difference on the screen. I'm thinking of checking for open IF coil but this would probably require de-soldering & disconnecting and is in a difficult location. Any thoughts?
Thanks