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In Reply to: Ei KT90 Question posted by Zedguy on October 20, 2016 at 19:21:30:
As Mendel said the "wings" on the plates indicate type III. But type IIIs weren't made in the 1980s AFAIK. And honestly I've had very little luck with Ei coding. I'd bet this tube is from later production.
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Follow Ups
- RE: Ei KT90 Question - Jim McShane 09:37:19 10/21/16 (0)