Later, there were hi-res (supposedly) versions of the 21FJP22... I have one in my Zenith, which if I recall, is a HR21GVP22. I've heard of a military number for 21" roundie tubes, which might be this 1819P22... I wonder if SgtRob might be able to ring in on this?
Charles
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Collecting & restoring TVs in Los Angeles since age 10
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