Vacuum Tube - 2A3, Electro-Harmonix, Gold Pin

Vacuum Tube - 2A3, Electro-Harmonix, Gold Pin

Electro-Harmonix
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Starting at: $74.95
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Electro-Harmonix 2A3 power triode tube with gold pins. Made in Russia. Gold plated grid.

SKU:
T-2A3-GOLD-EH
Item ID:
039525
Brand:
Electro-Harmonix
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
SingleT-2A3-GOLD-EH841358101830
Matched PairT-2A3-GOLD-EH-MP841358101847
Matched QuadT-2A3-GOLD-EH-MQ841358101854
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-GOLD-EH-MP7 in. × 5.47 in. × 2.73 in.
Matched Quad versionT-2A3-GOLD-EH-MQ7 in. × 5.7 in. × 5.51 in.
Single versionT-2A3-GOLD-EH7 in. × 2.75 in. × 2.75 in.
Weight (Packaging)Matched Pair versionT-2A3-GOLD-EH-MP2.404 lbs.
Matched Quad versionT-2A3-GOLD-EH-MQ4.808 lbs.
Single versionT-2A3-GOLD-EH0.311 lbs.
Product Measurements by Item
T-2A3-GOLD-EH-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-GOLD-EH-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-GOLD-EH - 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-GOLD-EH)Specification Sheet for Single263.45 KB

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Product Reviews

5.00 out of 5 based on 1 reviews
- January 3rd, 2022
5 out of 5

I used a matched pair for a pair of 2A3 SET mono block amps based on the Lofting-White design. I prototyped this circuit with existing 6A3 tubes. Results were great but the 2A3 with heavy iron has the bass and performance that is sweet and satisfying. The guys here at Antique Electronics are great and helped me out quickly when one of my 2A3s tested weak - they made it easy to make it right and I really appreciate it!