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misc-audio
155141-3347
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Need help interpreting tube code 3P3A R6J
Need help interpreting tube code 3P3A R6J. It's on a Mullard branded tube. Thanks.
pmboyd
03-03-2020 1:50am
1 response
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noromance
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3,349 posts
03-04-2020 3:55am
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R6J
Mullard, Mitcham factory. October 1956.
Is it a 85A2?
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