Thread: 7jp4 HK short
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  #13  
Old 05-08-2021, 05:55 PM
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timmy timmy is offline
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How can I find out a date code on a 7jp4 tube, it shows 7jp4 and under that it has the letters PEA. On the socket it has 604.
Last edited by timmy; 05-08-2021 at 06:28 PM.
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