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Hello, this tube reads "813" on glass, base reads "J4 Marconi made in Canada Jan 819". With original box, this tube appears never used with no burn marks. I have no way to test it to check it's value. Please see the other transmitting tube I currently have listed. I accept money orders.
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n_james@machine--tools.com (Natalia James) for additional information. This email is used for forwarding to newsgroup user.
