| PAIR TELEFUNKEN FISHER DIAMOND TUBES 12AX7 TEST EXCL | $65.00 |
| Pair Vintage GE 12AX7 ECC83 LONGPLATE Tubes Test NOS | $31.99 |
| 5) TELEFUNKEN 12AX7 Tubes 1960 date ALL TEST EXCELLENT+ | $165.00 |
| Procomm NOS Matched PAIR 5751 (12AX7) USA test great! | $25.99 |
| Telefunken 12AX7 Vintage Matched Pair ECC83 Tubes Test | $102.50 |
| 12AX7/ECC83 Holland Awesome Test for Used Hallicrafters | $20.88 |
| Vintage RCA 12AX7 -Test NOS - ECC83 - Black Plates | $33.00 |
| 2 Vintage RCA 12AX7 -Test Good/Strong - Black Plates | $27.01 |
| 2 Vintage RCA 12AX7 -Test Strong/NOS - Grey Plates | $28.99 |
| 2 Vintage RCA 12AX7 -Test NOS - Short Grey Plates | $21.50 |
| Vintage GE 12AX7 Tube - Test Strong | $6.50 |
| 2 Vintage Sylvania 12AX7 - Test NOS - matching | $16.70 |
| 2 Vintage Sylvania 12AX7 - Test NOS - | $25.00 |
| 2 Vintage Sylvania 12AX7 - Test NOS - Matching | $16.90 |
| 3 Vintage Raytheon 12AX7 A -Test Strong - Black Plates | $52.50 |
| Vintage Raytheon 12AX7 A -Test Good - Black Plates | $4.25 |
| Quad of Assorted 12AX7 Twin Triode Tubes~Used~Test Good | $38.23 |
| 2 Valvo 12AX7 ECC83 look new test new | $48.00 |
| Telefunken QUAD ECC83 12AX7 TEST STRONG MILITARY PULLS | $132.50 |
| Amperex Bugle Boy 12AX7 ECC83 MATCHED TEST STRONG | $46.00 |