Thread: 21EP4B sub for 21YP4
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Old 08-16-2016, 01:50 PM
ed857 ed857 is offline
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Join Date: Feb 2010
Location: Newark, Ohio
Posts: 26
21EP4B sub for 21YP4
Hi all

I have a Philco with a weak 21YP4 CRT. I also have a NOS 21EP4B rebuild.

Will the 21EP4B sub for the 21YP4? The bulbs sure look the same.

Thanks,
Ed
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