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Power Tubes

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Results & Compare List:
  1. Top Rated
    Tung-Sol 6L6GC STR Matched Power Tubes
    From Price $71.99
    Open Box:
    $66.95
  2. Top Rated
    JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube
    From Price $14.50
  3. Top Rated
    JJ Electronics EL34 Power Vacuum Tube
    From Price $24.90
  4. Top Rated
    JJ Electronics 6L6GC Power Vacuum Tube
    From Price $28.20
  5. Top Rated
    Groove Tubes Gold Series GT-6L6-R Matched Power Tubes
    From Price $64.99
  6. Top Rated
    Electro-Harmonix EL34 Matched Power Tubes
    From Price $54.99
  7. Groove Tubes Gold Series GT-6L6-S Matched Power Tubes
    From Price $86.81
  8. Groove Tubes Gold Series GT-EL34-M Matched Power Tubes
    From Price $46.68
  9. Top Rated
    Electro-Harmonix EL84 Matched Power Tubes
    From Price $34.99
  10. Top Rated
    Tung-Sol 6V6GT Matched Power Tubes
    Your Price $59.99
  11. Top Seller
    Groove Tubes Gold Series GT-EL84-S Matched Power Tubes
    Your Price $49.99
  12. Groove Tubes Gold Series GT-EL84-R Matched Power Tubes
    Your Price $49.99
  13. Mullard EL34 Tube
    From Price $52.99
  14. Svetlana EL34 Matched Power Tubes
    Your Price $35.99
  15. Genalex KT88 Gold Lion Power Tube Sets
    Your Price $254.99
  16. Top Rated
    JJ Electronics 6V6 Power Vacuum Tube
    From Price $25.90
  17. Wathen CryoTone Tubes 7025-WC Power Tube
    Your Price $82.00
  18. Top Rated
    Groove Tubes Gold Series GT-6V6-R Matched Power Tubes
    Your Price $49.99
  19. Top Rated
    Groove Tubes Gold Series GT-6V6-S Matched Power Tubes
    Your Price $59.99
  20. Svetlana 6550 Tube
    Your Price $184.99
  21. Groove Tubes Gold Series GT-6550-R Matched Power Tubes
    From Price $93.35
  22. Wathen CryoTone Tubes 6V6-WC Power Tube
    Your Price $96.00
  23. Wathen CryoTone Tubes CryoTone Tubes 6L6GC-WC Silver Power Tube
    Your Price $96.00
  24. Wathen CryoTone Tubes EL84-WC Power Tube
    Your Price $104.00
  25. Wathen CryoTone Tubes EL34-WC Power Tube
    Your Price $121.00
  26. Wathen CryoTone Tubes KT66-WC Power Tube
    Your Price $153.00
  27. Wathen CryoTone Tubes KT77-WC Power Tube
    Your Price $117.00
  28. Tung-Sol KT66 Matched Power Tubes
    Your Price $83.99
  29. THD Yellow Jacket Converter with EL84 Duet Tube
    Your Price $59.00
  30. Tung-Sol 6550 Tube
    Your Price $89.99
Showing 1-30 of 34 
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As long as electric guitars have been around, they've been backed up by tube-based amplifiers. Even today, after the invention of solid-state amps, tubes are still the preferred choice of many musicians—not only guitarists, but bassists, keyboardists, and players of other electric instruments as well. Along with their warm, resounding and distortion-loving tone, the beauty of tube amps is the ability to swap out the tubes to customize the sound. Power tubes are one of three types of tubes you might find in your amp.

When compared to the other two—rectifier and preamp tubes—the power tube's effect has less to do with tone and more to do with how high it lets you crank up the amplifier's volume. That makes your power tubes especially important when you're dealing with big, high-powered amp heads on monstrous speaker stacks. This isn't to say that their effect on tone is negligible, though. Preamp and power tubes follow each other directly, and the overall sound of your amp is something of a combination between the two. Think of the power tube as a filter and a booster: it takes the tone created in the preamp tube and puts on its own finishing touches while kicking up the power high enough to drive your cabinet. What all of this boils down to is that you should be looking for a power tube that will complement your amp's preamp tube while also delivering enough "oomph" to make your speakers sing.

Figuring out which power tubes will hit that sweet spot is a matter of trial and error, but there are a few especially popular tubes that make a good starting point. For the 6550 type, Tung-Sol has a good reputation. Svetlana makes a great 6L6, and JJ Electronics and Mullard have excellent EL84s and EL34s, respectively. Whether you go with those suggestions or try something different, once you've got a handle on which tubes are right for your amp, all that's left to do is stock up and hit the stage.

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