6L6 / 5881 Tubes

6L6 and 5881 tube reviews by John Templeton. These reviews are a vital resource for learning about manipulating your amplifier’s tone through better tube choices.

Review – Sovtek 6L6WXT+ Tube

Guitar-cable-amplifier. If this describes the rig you use, then the Sovtek 6L6WXT+ is one of two modern tubes you should consider. This is not a repackaged 5881. Extremely low noise and a lack of microphonics combine…

Review – Sovtek 5881WXT Tube

Solid construction and good performance. While not outstanding, the Sovtek 5881WXT is probably the most commonly used tube of its type. Many amp manufacturers have been using these reliable workhorses as original equipment components. A…

Review – JJ 6L6GC Tube

Big, open, articulate; these are the words that came into my head when listening to the JJ 6L6GC tubes. The build quality is very rugged with thick glass and a well supported plate assembly. Perhaps…