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(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania JAN NOS 1960's (62ma and 63ma)

$ 10.99

1 pair) JAN-CHS-6BQ6GTB=6CU6 Sylvania NOS 1960's 

1 tube) 62ma Gm=5750

1 tube) 63ma Gm=5850

 

Good Good = 50ma

Good Gm = 5200+

 

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