| RCA Red Base 5692 6SN7 6SN7GT matched pair | $87.00 |
| RCA Red Base Westinghouse 5692 6SN7 6SN7GT NIB pair | $93.00 |
| RCA GE Red Base 5692 6SN7 6SN7GT NIB pair | $97.00 |
| MATCHED QUAD RCA JAN CRC 5692 NOS RED BASE TUBE 6SN7 | $580.00 |
| TUBE : (4) RCA 5692 Red Base #P92 | $112.50 |
| RCA JAN-CHS 5692 6SN7 Red base Matched pair | $44.80 |
| RCA JAN-CHS 5692 6SN7 Red base Tube | $15.50 |
| RCA RED BASE 5692=TUBE AMPLIFIER= 3x MICA! =BLACK PLATE | $49.99 |
| RCA MATCHED PAIR 5692 RED BASE 6SN7 NOS TUBES | $100.00 |
| FantasticTubes | | |
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