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Need Info on 6BK4 Tube

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08-11-2005, 04:31 AM

vintagecollect vintagecollect is offline

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Join Date: Jul 2005

Posts: 658

Need Info on 6BK4 Tube

I recently worked on set with a 6BK4 HV regulator/shunt tube. How I know when these are bad???????? My tube tester doesn't have test data for this tube. Tube chart says just 6BK4, I found out later a 6BK4-A-B is available and a 6BK4-C version. Which tube do I use???, what are symtons of bad tube since can't test???

Last edited by vintagecollect; 08-11-2005 at 04:34 AM.

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