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| NEW Matched Quad of Groove Tubes GT-EL34-M amp tubes | $ 95.99 |
| FENDER AMP 6L6R MATCHED GROOVE TUBES # 4 BIAS, NEW | $ 13.77 |
| FENDER AMP 6L6R MATCHED GROOVE TUBES # 7 BIAS, USED | $ 0.99 |
| Groove Tubes New EL84-S Matched Pair | $ 15.00 |
| Groove Tube tubes GT EL84 S Duet (2) new matched | $ 32.00 |
| Groove Tubes 6L6 matched set, unused, GT-6L6GE, NR | $ 11.50 |
| BRAND NEW Groove Tubes 12AX7R Matched Russian DUET | $ 35.00 |
| EL34 GROOVE TUBES PAIR MATCHED MARSHALL USED | $ 0.99 |
| EL34 GROOVE TUBES MATCHED PAIR MARSHALL USED | $ 0.99 |
| NEW GROOVE TUBES Matched DUET 6L6-R Russian BLUE #2 | $ 40.00 |
| 6L6-R Groove Tubes..NEW MATCHED DUET..rating (4-7).6L6 | $ 29.95 |
| NEW GROOVE TUBES Matched DUET 6L6-R Russian BLUE #3 | $ 40.00 |
| BRAND NEW Groove Tubes 12AX7-R Matched Russian SET OF 4 | $ 70.00 |
| BRAND NEW Groove Tubes 12AX7-R Matched Russian SET OF 3 | $ 52.50 |
| E34LS Groove Tubes..NEW MATCHED QUAD!!..Rating (5 or 7) | $ 75.00 |
| Matched set of Fender Groove Tubes GT6L6B Quads | $ 50.00 |