Okay, so this is weird.
The new RF amp tube came in. I swapped them out, and it ran fine for a bit. I actually noticed that the audio static was there, but the snow was absent, but I figured it wasn't getting a strong signal since the antenna was disconnected, so I put the back on and sure enough the snow came back.
It ran fine for awhile, then started cutting in and out again, so I took the back off.
Now I have snow, everything looks normal, and as of yet (probably about 15 minutes) there's no signal loss. Tapping tubes and playing with wires isn't changing anything either.
Any ideas?
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To keep your tubes running smoothly, make sure to dust underneath the glass as well.
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