Thread: Zenith 2250R
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Old 09-27-2018, 12:06 PM
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Kevin Kuehn Kevin Kuehn is offline
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Join Date: Jan 2011
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Quote:
Originally Posted by dieseljeep View Post
Every 12" Zenith I've seen used a metal cone CRT! The 10" model used a 10BP4 glass tube.
It's been probably 50 years since I worked on one of those.
The Sams would probably show the top view of the chassis and the CRT.
My model 2350RZ1 tube chart lists both 12UP4 and 12LP4. As found with an RCA 12LP4A. I'd expect many 12UP4 were converted to all glass at a later time.

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