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Vacuum Tube - 5881 / 6L6WGC, Sovtek

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SKU: T-5881-SOVT
Item ID: 004545
Starting at: $20.65
In Stock
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The 5881 is a very reliable tube that is widely used in many current production tube amplifiers. It has a warm tone with good 'bite.' This modern version is able to tolerate higher voltages than its 5881 / 6L6 cousins. The Sovtek 5881 delivers a warm, round tone that "sweetens" any vintage or modern guitar amp design. Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6. In fact, they're frequently used as replacements for the old 7027 model in vintage Ampegs. Extremely consistent from piece to piece. The Sovtek 5881 has a heater voltage of 6.3 volts at 0.88 amperes. Maximum plate voltage is 250 volts while maximum plate current is 73 mA. The 5881 has a Transconductance rating of 6000 micromhos and a maximum output power of 5.8 watts.

Apex Tube Matching
Matched versions of this tube use Apex Matching
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-5881-SOVT-MP609722124010
Apex Matched QuadT-5881-SOVT-MQ609722124027

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Specifications, Files, and Documents

Product Reviews

5.00 out of 5 based on 5 reviews
5 out of 5

I bought matching quartet to replace my older Sovtek 5881`s...almost one full year one of these failed.Went full purple with HUGE hum from speakers.I removed the tubes and put the old pones back in...way better.They do not make tubes worth a crap anymore.I had exact same issue with RUBY...brand new,one failed in about 2 months.So far the MULLARD EL34`s are holding up.

- December 25th, 2019
5 out of 5

These Sovtek 5881 tubes are perfect for my 1966 Supro Thunderbolt. This amp runs the tubes hot and they just seem to like it that way. Nice crunch when pushed hard.

- November 16th, 2019
5 out of 5

These things sound RAD! Tight, nice compression.

- February 9th, 2019
5 out of 5

Very pleased with the "sound" of these Sovteks. Smooth midrange and high end with solid bass. I like these better than some of the more expensive 6L6's

- January 29th, 2017
5 out of 5

Good basic power tubes

- April 19th, 2015

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Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.