Vacuum Tube - 2A3, Sovtek

Vacuum Tube - 2A3, Sovtek

Sovtek
Vacuum Tube - 2A3, Sovtek image 1
Customer image:<br/>"SOVTEK 2A3 side lettering"
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Vacuum Tube - 2A3, Sovtek image 1
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Customer image: "SOVTEK 2A3 side lettering"
Starting at: $56.50
Product Options
  • Single (T-2A3-SOVT)
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Sovtek 2A3 power triode tube. Made in Russia.

Super 2A3.

SKU:
T-2A3-SOVT
Item ID:
039497
Brand:
Sovtek
Type:
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
SingleT-2A3-SOVT841358101861
Matched PairT-2A3-SOVT-MP841358101878
Matched QuadT-2A3-SOVT-MQ841358101885
Product Measurements by Type
Bulb Temperature150°C
Cathode Current (Ik)100 mA
Grid Circuit Resistance (Rg), Fixed Bias0.51 MΩ
Grid Voltage (Ug)-42 V
Heater Current2.5 A
Heater Voltage2.5 V
Item Diameter55 mm
Item Height150 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 versionT-2A3-SOVT-MP4.53 in. × 4.12 in. × 2.26 in.
Matched Quad versionT-2A3-SOVT-MQ4.53 in. × 4.53 in. × 4.12 in.
Single versionT-2A3-SOVT7 in. × 2.25 in. × 2.25 in.
Weight (Packaging)Matched Pair versionT-2A3-SOVT-MP1.906 lbs.
Matched Quad versionT-2A3-SOVT-MQ3.812 lbs.
Single versionT-2A3-SOVT0.238 lbs.
Product Measurements by Item
T-2A3-SOVT-MP - Matched Pair versionBulb Temperature150°C
Cathode Current (Ik)100 mA
Grid Circuit Resistance (Rg), Fixed Bias0.51 MΩ
Grid Voltage (Ug)-42 V
Heater Current2.5 A
Heater Voltage2.5 V
Item Diameter55 mm
Item Height150 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
T-2A3-SOVT-MQ - Matched Quad versionBulb Temperature150°C
Cathode Current (Ik)100 mA
Grid Circuit Resistance (Rg), Fixed Bias0.51 MΩ
Grid Voltage (Ug)-42 V
Heater Current2.5 A
Heater Voltage2.5 V
Item Diameter55 mm
Item Height150 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
T-2A3-SOVT - Single versionBulb Temperature150°C
Cathode Current (Ik)100 mA
Grid Circuit Resistance (Rg), Fixed Bias0.51 MΩ
Grid Voltage (Ug)-42 V
Heater Current2.5 A
Heater Voltage2.5 V
Item Diameter55 mm
Item Height150 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

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Specifications, Files, and Documents

PDF: Specification Sheet for Single (T-2A3-SOVT)Specification Sheet for Single254.42 KB

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Product Reviews

5.00 out of 5 based on 2 reviews
- November 17th, 2019
5 out of 5

I've been using this tube in a home made amp that's used to play music in my workshop. They sound great and they have been reliable for a lot of hours.

- January 7th, 2016
5 out of 5

The shipping was real fast and the Sovtek 2A3 works just great in my little amplifier. Nice clear, clean sound. It replaces a JJ-2A3-40 that failed at about 1000 hours. I've had good luck with Russian tubes.