Thread: Columbia 817-6
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  #15  
Old 04-09-2016, 12:07 PM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,440
Check H out tube grid bias to make sure your osc. drive is making it to the output. If you have proper grid drive and no screen grid voltage issues, then check your flyback.
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