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Old 03-30-2020, 09:42 AM
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timmy timmy is offline
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Crt id

Raytheon tube resembles a 7jp4 but no identifying numbers, but on the base there is 11m49 stamped in red ink does anyone know what that number equates to.
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Old 03-30-2020, 11:13 AM
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sounds like a date code - November 1949?
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