Thread: TRK12/120 Restoration
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  #49  
Old 07-15-2015, 07:19 AM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
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RCA specified a special version of the 6L6 for that set. It is metal. If I remember correctly, you can identify the proper one by a double metal ring at the bottom rather than a single one. I have no idea how modern tubes would work.
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