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It has been a while since I worked on mine but I'm thinking that the shadow mask should ride loosely on the spacer, not get pinched between the spacer and the reflector. Is I said, mine had shrunk and I needed to sand out the inside diameter to get it to float on the ring. somewhere there is a Philco drawing of the assembly of the auto tune system but I can't find it now.
I found it in my files but I can't post it here. the file is too large. It is Philco service bulletin No. 273 - Auto Tune. Acording to the drawing in buletin, I was wrong about the shadow mask riding on the ring. Instead the ring is supposed to stop before it pinches the shadow mask and the reflector.
OK. I found it: https://philcoradio.com/library/index.ph...bulletins/
(This post was last modified: 04-06-2021, 10:50 PM by rfeenstra.
Edit Reason: update
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RE: 37-116 Restoration - by rfeenstra - 04-06-2021, 10:37 PM
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