Vintage Sylvania RFT Germany 12ax7 ECC 83 Tube Maxi Tested

1x RFT-RWN ECC83/12AX7 MATCHED 1/2/3/More TEST IN PHOTO NOS Vintage Germany

1 Good Siemens Germany Rib Plate 12AX7 tube #8336

1 Good Rca Black Plate 12AX7 tube #8300

1 Good perfect Balanced Rare General Electric Black Plate 12AX7 tube #8297

Pair of RFT 12AX7 ECC83 Vacuum Tubes #2

1 Strong Sylvania Black Plate D getter 12AX7 tube

1 x TESTED ECC83 RFT RWN Audio Tubes 12AX7 ECC803S Double Triode