Vacuum Tube - 5881WXT, Sovtek

Sovtek
Vacuum Tube - 5881WXT, Sovtek image 1
Customer image:<br/>"Soldano HR50+"
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Vacuum Tube - 5881WXT, Sovtek image 1
Customer Images:
Customer image: "Soldano HR50+"

Vacuum Tube - 5881WXT, Sovtek

Starting at: $41.70
In Stock

The Sovtek 5881WXT is the same as the 5881 but with a full size base for easy installation in vintage amp designs. 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.

Apex Tube Matching
Matched versions of this tube use Apex Matching
SKU:
T-5881WXT-SV
Item ID:
004547
Brand:
Sovtek, Apex Matched
Type:
RoHS Compliant
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-5881WXT-SV-MP609722124041
Apex Matched QuadT-5881WXT-SV-MQ609722124058
SingleT-5881WXT-SOVT683274021324
Capacitance, Cathode to Heater11 pF
Capacitance, Transfer1.0 pF
Capacitance, input11 pF
Capacitance, output6.7 pF
Cathode to Heater Insulation Resistance4 MΩ
Filament Current (If)840 - 920 mA
Grid 1 Insulation Resistance200 MΩ
Grid 1 Inverse Current0.5 mA
Grid 2 Current6 mA
Height, base to top3.5 in.
Internal Resistance (Ri)18 kΩ - 75 kΩ
Non-linear Harmonic Distortion15 %
Output Power (POut)5.8 W
Plate Current (Ia)60 mA - 86 mA
Readiness Time50 s
Transconductance (S)5.2 mA/V - 6.8 mA/V
Packaging Information
Packaging DimensionsApex Matched Pair versionT-5881WXT-SV-MP5.1 in. × 3.5 in. × 1.8 in.
Apex Matched Quad versionT-5881WXT-SV-MQ5.1 in. × 3.5 in. × 3.5 in.
Single versionT-5881WXT-SOVT1.5 in. × 1.5 in. × 4 in.
Weight (Packaging)Apex Matched Pair versionT-5881WXT-SV-MP0.2866 lbs.
Apex Matched Quad versionT-5881WXT-SV-MQ0.5732 lbs.
Single versionT-5881WXT-SOVT0.1433 lbs.
T-5881WXT-SOVT - Single versionCapacitance, Cathode to Heater11 pF
Capacitance, Transfer1.0 pF
Capacitance, input11 pF
Capacitance, output6.7 pF
Cathode to Heater Insulation Resistance4 MΩ
Filament Current (If)840 - 920 mA
Grid 1 Insulation Resistance200 MΩ
Grid 1 Inverse Current0.5 mA
Grid 2 Current6 mA
Height, base to top3.5 in.
Internal Resistance (Ri)18 kΩ - 75 kΩ
Non-linear Harmonic Distortion15 %
Output Power (POut)5.8 W
Plate Current (Ia)60 mA - 86 mA
Readiness Time50 s
Transconductance (S)5.2 mA/V - 6.8 mA/V
T-5881WXT-SV-MP - Apex Matched Pair versionCapacitance, Cathode to Heater11 pF
Capacitance, Transfer1.0 pF
Capacitance, input11 pF
Capacitance, output6.7 pF
Cathode to Heater Insulation Resistance4 MΩ
Filament Current (If)840 - 920 mA
Grid 1 Insulation Resistance200 MΩ
Grid 1 Inverse Current0.5 mA
Grid 2 Current6 mA
Height, base to top3.5 in.
Internal Resistance (Ri)18 kΩ - 75 kΩ
Non-linear Harmonic Distortion15 %
Output Power (POut)5.8 W
Plate Current (Ia)60 mA - 86 mA
Readiness Time50 s
Transconductance (S)5.2 mA/V - 6.8 mA/V
T-5881WXT-SV-MQ - Apex Matched Quad versionCapacitance, Cathode to Heater11 pF
Capacitance, Transfer1.0 pF
Capacitance, input11 pF
Capacitance, output6.7 pF
Cathode to Heater Insulation Resistance4 MΩ
Filament Current (If)840 - 920 mA
Grid 1 Insulation Resistance200 MΩ
Grid 1 Inverse Current0.5 mA
Grid 2 Current6 mA
Height, base to top3.5 in.
Internal Resistance (Ri)18 kΩ - 75 kΩ
Non-linear Harmonic Distortion15 %
Output Power (POut)5.8 W
Plate Current (Ia)60 mA - 86 mA
Readiness Time50 s
Transconductance (S)5.2 mA/V - 6.8 mA/V

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet452.76 KB
Questions? Contact us at [email protected], or give us a call at 480-296-0890

Product Reviews

4.67 out of 5 based on 6 reviews
Bossman415 - September 26th, 2022
3 out of 5

These were purchased to restore a JCM 900 5881 4100 back to stock. These tubes are built like a tank and can easily handle 6l6 plate voltages (~490VDC in the JCM 900). As for tone, I prefer 6L6GC’s (like TAD) over these tubes. The Sovtek 5881 has a pronounced upper midrange but lacks bottom end fullness. Cool tube but there are better options sonically out there.

Anonymous - November 21st, 2021
5 out of 5

Easily the best option for a modern production 6L6 tube.

Mollica Amps - July 21st, 2021
5 out of 5

Probably the best modern option for a 6L6.

Tim Smigocki - February 22nd, 2021
5 out of 5

Great service. Will be installing in another week. Thanks for follow up. Tim

don hines - October 15th, 2019
5 out of 5

fine product. great customer service and quick shipping

Ed Gardella - February 20th, 2019
5 out of 5

Second set for my Soldano HR50+. Perfectly matched .. sound perfect. I’ll never buy tubes anywhere else!

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.