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Vacuum Tube Information Resources
Vacuum Tube Info
- Everything you need to know about 12AX7 Tubes
- 12AX7 Substitution
- Emission Testers and 12AX7
- 12AX7 Tube Gems
- EL34, 6CA7, KT77 Differences?
- 6L6GC, 6L6GB/5881, and KT66 Differences
- 6N3P Equivalent Tubes
- Do Vacuum Tubes Need to be Matched?
Tube Reviews and Guides
- Best 12AX7 Review
- Best EL34 Tube Review
- Best 6L6 Tube Review
- KT66 Tube Guide
- Best 6DJ8 Review
- 6550 Tube Selection Guide
Vacuum Tube Problems?
- Vacuum tube filament not glowing?
- Has my vacuum tube gone bad?
- Microphonic Noise
- The most common vacuum tube problems (sockets)
- Broken Tube Guide Pins