XPost: sci.electronics.design   
      
   On Thu, 27 Dec 2018 21:11:35 -0600, tubeguy@myshop.com wrote:   
      
   >I'm not intending on building this, but it's interesting and makes me   
   >wonder if someone could use EIGHT 6L6 tubes, or TEN?   
   >(Of course adding more tubes mean bigger audio output transformers and   
   >heftier power supplies.   
      
   Tubes may age at different rates, so the characteristics might be   
   quite different after a long time. It might not make sense to replace   
   a single (failed) tube and you may have to replace the whole set of   
   tubes with new tubes preferably from the same manufacturing batch.   
   This can be quite expensive :-)   
      
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