WWII 1940'S NOS NIB SYLVANIA 6SN7GT VT231 TUBES $299

THE SYLVANIA VT231 6SN7 TUBE ARE AMONG THE BEST OVERALL 6SN7 TYPE TUBE EVER MANUFACTURED.  

TUBES TESTED AND TRIPLE MATCHED FOR GM, GAIN, AND NOISE!

  TRIODE 1  2,810  -84DBV  TRIODE 2  2,860  -84DBV

  TRIODE 1  2,800  -83DBV  TRIODE 2  2,880  -84DBV

A HUGE UPGRADE TO MOST ANY 6SN7 TYPE TUBES AND ON PAR WITH THE BEST NOS TUBES EVER MANUFACTURED! PROMINENT BASS, LIQUID SMOOTH MIDS AND HIGHS - GREAT SOUNDING & SUPER LOW NOISE 

TUBES TESTED ON LAB GRADE KS15750 * MAXI PRE TESTER AND TUBES EXCEED STANDARDS FOR SHORTS, EMISSIONS, GAS, GAIN, GM, AND SPECIAL HAND SELECTION 

100% FEEDBACK

100% GUARANTEED AS PICTURED & DESCRIBED

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