Vacuum Tube - 6B4G, Sovtek

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Vacuum Tube - 6B4G, Sovtek

Starting at: $59.95
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Sovtek 6B4G power triode tube. Made in Russia.

Sovtek is proud to announce the release of the Sovtek 6B4G vacuum tube. Unlike traditional 6B4G's, which consist of dual triodes connected in parallel inside the tube's envelope, the Sovtek 6B4G utilizes a single triode design with a Directly Heated cathode element. This updated design eliminates differential resistance loading common to other 6B4G's, yielding a much more reliable tube. In addition, the Sovtek 6B4G has a lower inter-electrode capacitance, offering a wider frequency response with high sound detail. The Sovtek 6B4G is identical to the original 6B4G in appearance, electrical specs, and overall and connecting dimensions, yet it yields 40% higher power at 30% lower non-linear distortion levels.

The 6B4G has a heater current of 1 A and a plate current of 60 mA. Transconductance is 5.5 mA/V while the tube has an amplification factor of 2.2 and an output power of 3 watts.

Maximum plate voltage is 450 v while maximum cathode current is 100 mA.

Item ID:
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Matched PairT-6B4G-SOVT-MP841358102059
Matched QuadT-6B4G-SOVT-MQ841358102066
Product Measurements
Amplification Factor2.2
Bulb Temperature150°C
Cathode Current (Ik)100 mA
Grid Voltage (Ug)-42 V
Heater Current1 A
Heater Voltage6.3 V
Item Diameter55 mm
Item Height140 mm
Output Power (POut)≥ 3.0 W
Plate Current (Ia)60 mA
Plate Dissipation (Wa)15 W
Plate Load Resistance2.5 kΩ
Plate Voltage (Ua)≤ 450 V, 250 V typical
Transconductance (S)5.5 mA/V
Packaging Information
Packaging DimensionsMatched Pair version6.11 in. × 4.66 in. × 2.35 in.
Matched Quad version6.11 in. × 4.66 in. × 4.66 in.
Single version6.75 in. × 2.25 in. × 2.25 in.
Weight (Packaging)Matched Pair version1.73 lbs.
Matched Quad version3.46 lbs.
Single version0.189 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet285.83 KB

Questions and Answers

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Asked by Anonymous on May 7th, 2019.
May 8th, 2019
Staff Member
The only data sheet that Sovtek offers is provided above. We are unable to get additional information beyond said data sheet.

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