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Maarten · 19th Jul 2017, 9:01 pm

Thanks, this confirms that it is likely to be a 1967 tube.

78-E is (same principle as in receiving valves) the tube type and revision. I have one other AW43-88 on file (which contains just 45 tubes, will be collecting more numbers in the future) which is coded 785 H1H so tube type 78, revision 5, dated august 1961 (factory original found in a 1962 set). It seems very likely that revision -E is later than 5 so the year would be 1967.

19th Jul 2017, 9:01 pm	#41
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,204	Re: Skip find Ultra Thanks, this confirms that it is likely to be a 1967 tube. 78-E is (same principle as in receiving valves) the tube type and revision. I have one other AW43-88 on file (which contains just 45 tubes, will be collecting more numbers in the future) which is coded 785 H1H so tube type 78, revision 5, dated august 1961 (factory original found in a 1962 set). It seems very likely that revision -E is later than 5 so the year would be 1967. Last edited by Maarten; 19th Jul 2017 at 9:07 pm.