Up for sale is a set of five JJ Tesla hand picked high gain 12ax7 tubes,I purchased these with a set of KT 77 power tubes as a set .These tubes are the higher gain 12ax7s not the normal ecc83 9.00 version they have 4 matched and balanced high gain with a special balanced high gain 12ax7 for the phase inverter....or the last tube in the 12ax7 slot<farthest from the input jack>..I have these installed in my carvin legacy and WOW!!!!they are brilliant..they retail at 15.99 apiece and are brand new so You will not be dissatisfied 50.00 obo