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Hello:
Last weekend I came across 8 Amperex 12AX7 Orange Globe tubes. Appear to be new but were in "old" white boxes. They are for sure pretty old considering where they came from. Question is: They have an etched date code on the bottom that is "49C5". Anyone tell me when they were made?
Follow Ups:
Greetings from the Left Coast.The following link takes you to Brent Jessee's excellent tube decoder page for Amperex:
Good luck figuring it all out...
the '4' is actually a delta - holland production. Dates look like March, 1969. Should be nice tubes.
Thanks for the info.
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