Are 6L6 and 5881 tubes the same?

You can immediately notice that the 6L6 and 5881 are in the same family of valves. They are part of the general evolutionary process for this particular valve. So they are similar, but not identical tubes. In other words, there are no 6L6 tubes which are identical to the 5881 tube.

Are KT66 and 6L6 interchangeable?

6L6 and KT66 are essentially the same tube, but depending on the 6L6GC and KT66 being compared, the 6L6GC might be smoother, while the KT66 might be a tad more aggressive.

Can KT66 replace EL34?

The JJ Big Bottle 6CA7 is also a drop in replacement for any EL34 type amp. The JJ KT66 can be used in a variety of amps that use 6L6’s if there is room!

Are all 6L6 tubes the same?

For the most part, 6L6 tubes are interchangeable. The 6L6 along with the G, GA and GB are all rated to the same 19 watt plate dissipation with 360 plate volts.

Are there any issues with the Sovtek KT66?

Biasing and current draw are not issues, just the same as any 6L6GC. The sound of the Sovtek KT66 is great and usable for any application. If your amp has “bear trap” tube retainers they will have to go because of the size of the tube’s base but also the bear trap clamp will ground the metal base to the chassis and cause a malfunction.

Is the Sovtek 5881wxt a beam tetrode?

The Sovtek 5881WXT tube is a reliable beam tetrode delivering a warm, round tone that “sweetens” any vintage or modern guitar tube amp design. Built to rigid military standards, the Sovtek 5881WXT will tolerate higher voltages than most other 6L6 tubes. This tube is commonly found relabeled by Fender and Groove Tubes to GT-6L6B.

Are there any Sovtek 5881wxt 6L6 audio tubes?

Built to rigid military standards, the Sovtek 5881WXT will tolerate higher voltages than most other 6L6 tubes. This tube is commonly found relabeled by Fender and Groove Tubes to GT-6L6B. Mesa Boogie relabels them STR425.

Is the KT66 tube the same as the 6L6?

Sovtek KT66 (discontinued) – Everything you read in the review of the Sovtek 6L6WXT+ holds true for this tube. A larger than average curved glass envelope and metal base ring make this a different package than the familiar 6L6. Biasing and current draw are not issues, just the same as any 6L6GC.