13 Tubes manufactured by National

• 

  

  

  

  12AD7

  Branded National

• 

  12AX7

  Matsushita

  Branded National

• 

  

  

  

  

  12AX7

  Matsushita

  Branded National

• 

  12AX7WA

  Branded National

• 

  

  6973

  RCA

  Branded National

• 

  

  6L6GC

  Branded National

• 

  

  

  E83CC

  Ei

  Branded National

• 

  12AU7, ECC82

  Matsushita

  Branded National

• 

  

  

  

  12AX7A, ECC83

  Branded National

• 

  

  12AX7A, ECC83

  Branded National

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  EL34

  Branded National

• 

  

  

  

  6CA7, EL34

  RFT

  Branded National

• 

  

  

  

  

  KT77

  National

  Branded RFT