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In Reply to: RE: Trying to figure out the code on a 7062 tube. posted by John PA on March 17, 2016 at 16:55:34
My WAG:
IV5 = 5th iteration of 7062.
"4" of 49D4 is delta = Heerlen, Holland.
9D4 = 1959 (or '69), fourth week of April.
Follow Ups:
1969.
"Tubes before 1960 have a second line with only 3 digits."
Tre'
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