*****SELLING WORLDWIDE*****
>>>>THESE ARE PLATINUM MATCHED QUAD TUBES,well-balanced triode--triode & tube--tube in transconductance and plate current).
*****QUAD RCA 6SN7 GTB,USED.45-65% SILVER PRINT VISIBLE."STOCK PHOTO".SUPPLIED IN WHITE BULK BOX.
>>>>TESTED TWICE.
*****1st) NO SHORTS,NO GAS AND VERY STRONG TRANSCONDUCTANCE 
*****2nd)TUBES ARE NOT USABLE UNLESS THEY ARE LIVE AUDIO TESTED WITH NO HUM & NON-MICROPHONIC WITH MODIFIED DYNACO PAS 3 & TUBE OTL.
****MORE QUADS AVAILABLE.
**** Having a minimum of,
TUBE1) 90/90 uSIEMENS & 10.0/10.0 ma
TUBE2) 90/90 uSIEMENS & 10.0/10.1 ma
TUBE3) 90/92uSIEMENS & 10.0/10.4 ma
TUBE4) 92/92 uSIEMENS & 10.3/10.5 ma PLATE CURRENT
  WHERE 50/50  uSIEMENS IS MINIMUM AND NOS START AT 77/77 uSIEMENS AND WE ONLY SELL 85/85 or HIGHER.PAIRS AND SINGLES ALSO  AVAILABLE.
*****TUBES WITHOUT TEST DATA / RESULT IS NOT SOUND DECISION & LISTING ADS THAT SAY'S "test good" or "test strong" IN VACUUM TUBES IS NOT ENOUGH AND AVOID SURPRISES               
******  WORLDWIDE SHIPPING  WILL BE  BY   USPS REGISTERED MAIL   DUE TO A LOT OF UNDELIVERED GOODS.CANADA,JAPAN,SWITZERLAND,UK,FRANCE & GERMANY HAVE LOWER SHIPPING RATES,SEND EMAIL.
******PLEASE CHECK MY OTHER COOL AUDIO STUFF..
*****QUESTIONS ARE ALWAYS WELCOME.