Thread: 6BK4 versus 6BK4C/6EL4A
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Old 11-29-2007, 12:16 AM
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jpdylon jpdylon is offline
<-- sucker for old sets.
  
Join Date: Apr 2005
Location: Knox County, Tennessee
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I also thought that the 6BK4c had an improved element design that prevented filament sag if the tube was in a horizontal position?

Perhaps that was some other regulator i was thinking about?
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