Premium 6DJ8 tubes from US, Japanese and European manufacturers
| Item No. | Tube type and description | Price each |
| 6DJ.001 | RCA 6DJ8 Vintage RCA US manufacture | $20.00 |
| 6DJ.002 | RCA 6DJ8 RCA rebranded Yugoslavian tubes | $10.00 |
| 6DJ.003 | Amperex 6DJ8 Amperex Bugleboy tubes | $55.00 |
| 6DJ.004 | Phillips 6DJ8 Phillips manufactured tubes with reverse triangle factory code | $40.00 |
| 6DJ.005 | Siemens 6DJ8 European Siemens tubes. Some may be relabeled but are siemens manufacture | $60.00 |
| 6DJ.006 | Mullard 6DJ8 Manufactured in Mullard's Blackburn plant (B code) | $50.00 |
| 6DJ.007 | G.E. 6DJ8 GE US manufacture tubes | $20.00 |
| 6DJ.008 | Westinghouse 6DJ8 Westinghouse tubes that have slightly lower gain but sound amazing | $15.00 |
| 6DJ.009 | Japanese 6DJ8 GE Vintage Japanese manufactured tubes | $15.00 |
Premium 7DJ8 tubes
7DJ8 tubes will work great in most amps and preamps that use the 6DJ8
| 7DJ.012 | Mullard 7DJ8 Triple mica | $25.00 |
| 7DJ.002 | Phillips 7DJ8 Premium Phillips manufactured European 7DJ8 tubes | $40.00 |
| 7DJ.003 | Telefunken 7DJ8 Telefunken tubes with diamond etch on bottom | $80.00 |
| 7DJ.004 | International 7DJ8 International Servicemaster tubes | $10.00 |