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.

Sovtek 6L6WXT Vacuum Tube Review

Review – Sovtek 6L6WXT+ Tube

4:33 pm
Guitar-cable-amplifier. If this describes the rig you use, then the Sovtek 6L6WXT+ is one of two modern vacuum tubes you should consider. This is not a repackaged 5881. Extremely low noise and a lack of microphonics…
Sovtek 5881WXT Vacuum Tube Reviews

Review – Sovtek 5881WXT Tube

4:13 pm
Solid construction and good performance. While not outstanding, the Sovtek 5881WXT vacuum tube is probably the most commonly used tube of its type. Many amp manufacturers have been using these reliable workhorses as original equipment…
JJ 6L6GC Vacuum Tube Reviews

Review – JJ 6L6GC Tube

2:59 pm
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…
Mullard 6L6GC Vacuum Tube

Review – Mullard 6L6GC Tube

4:17 pm
First off, I should state that Mullard never produced a 6L6GC. This is not a reissue, but a brand new tube. The closest Mullard made in England would be the KT66 and KT77. Physically, this…