*****SELLING WORLDWIDE*****
>>>>THESE ARE PLATINUM MATCHED TUBES(well-balanced triode-triode & tube-tube in transconductance and plate current).
*****NOS PAIR GE 6SN7 GTB RARE,BRIDGE FILAMENT.GLASS PRINTED,1-35% PRINT VISIBLE.PICTURE SHOWN ARE STOCK PHOTO.PRINT ON GLASS ARE VERY EASILY RUB-OFF BUT GUARANTEED NOS NO BURN MARKS.THE TUBES ARE SUPPLIED IN NOS GE BOX. 
***** TESTED TWICE,
      1st)NO SHORTS,NO GAS AND VERY STRONG TRANSCONDUCTANCE. 
      2nd) TUBES ARE NOT USABLE UNLESS THEY ARE LIVE AUDIO TESTED FOR NOISE and NON-MICROPHONIC. USED MODIFIED DYNACO PAS 3 AND TUBE OTL.
>>>Having a minimum of,
TUBE1)2850/2850 uSIEMENS & 7.4/7.6 ma
TUBE2)2800/2850 uSIEMENS & 7.6/7.8 ma  WHERE 2100/2100 IS MINIMUM AND NOS START AT 2600/2600 uSIEMENS WITH HICKOK TUBE TESTER.
*****TUBES WITHOUT TEST DATA IS NOT SOUND DECISION & LISTING  ADS THAT SAY'S "TEST GOOD" or "TEST STRONG"  WITH HIDDEN TEST RESULTS IN VACUUM TUBES IS NOT ENOUGH,INVEST WISELY AND AVOID SURPRISES
*****QUESTIONS ARE ALWAYS WELCOME.