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Thank you, Joe. This is more helpful.

67.163.212.50

In Reply to: RE: Thanks, Joe. This is marginally helpful. Nothing about dates, though. posted by Joe Appierto on June 10, 2025 at 09:40:49

:)

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RE: Thank you, Joe. This is more helpful. - Nunki 09:39:01 06/13/25 (1)
somewhere i read that siemens E88CC/6022/E188CC/Cca with that large getter support and imprinted codes are not true siemens tubes but where made by TUNGSRAM (Hungary) for siemens.

but perhaps this imformation was wrong...
- RE: Thank you, Joe. This is more helpful. - Joe Appierto 13:12:17 06/13/25 (0)
  I guess that is possible but if so then they're using Siemens tooling. The other two pictures I'm posting above are from the same sleeve of six that I had. Note the four-seamed top which was a hallmark of both Philips and Siemens. I have seen four-seamed Japanese Matsushita tubes but that was a case where Matsushita bought the tooling from Mullard.
  Joe

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