Vacuum Tube - 2A3, Electro-Harmonix, Gold Pin
Electro-Harmonix 2A3 power triode tube with gold pins. Made in Russia. Gold plated grid.
Single or Matched | Our Part Number | UPC/EAN |
---|---|---|
Single | T-2A3-GOLD-EH | 841358101830 |
Matched Pair | T-2A3-GOLD-EH-MP | 841358101847 |
Matched Quad | T-2A3-GOLD-EH-MQ | 841358101854 |
Bulb Temperature | 150°C | ||
Cathode Current (Ik) | 100 mA | ||
Grid Circuit Resistance (Rg), Fixed Bias | 0.51 MΩ | ||
Grid Voltage (Ug) | -42 V | ||
Heater Current | 2.5 A | ||
Heater Voltage | 2.5 V | ||
Item Diameter | 55 mm | ||
Item Height | 150 mm | ||
Output Power (POut) | 3.0 W | ||
Plate Current (Ia) | 60 mA | ||
Plate Dissipation (Wa) | 15 W | ||
Plate Load Resistance | 2.5 kΩ | ||
Plate Voltage (Ua) | ≤ 450 V, 250 V typical | ||
Transconductance (S) | 5.5 mA/V |
Packaging Dimensions | Matched Pair version | T-2A3-GOLD-EH-MP | 7 in. × 5.47 in. × 2.73 in. |
Matched Quad version | T-2A3-GOLD-EH-MQ | 7 in. × 5.7 in. × 5.51 in. | |
Single version | T-2A3-GOLD-EH | 7 in. × 2.75 in. × 2.75 in. | |
Weight (Packaging) | Matched Pair version | T-2A3-GOLD-EH-MP | 0.622 lbs. |
Matched Quad version | T-2A3-GOLD-EH-MQ | 1.244 lbs. | |
Single version | T-2A3-GOLD-EH | 0.2954 lbs. |
T-2A3-GOLD-EH-MP - Matched Pair version | Bulb Temperature | 150°C |
Cathode Current (Ik) | 100 mA | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.51 MΩ | |
Grid Voltage (Ug) | -42 V | |
Heater Current | 2.5 A | |
Heater Voltage | 2.5 V | |
Item Diameter | 55 mm | |
Item Height | 150 mm | |
Output Power (POut) | 3.0 W | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | 15 W | |
Plate Load Resistance | 2.5 kΩ | |
Plate Voltage (Ua) | ≤ 450 V, 250 V typical | |
Transconductance (S) | 5.5 mA/V | |
T-2A3-GOLD-EH-MQ - Matched Quad version | Bulb Temperature | 150°C |
Cathode Current (Ik) | 100 mA | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.51 MΩ | |
Grid Voltage (Ug) | -42 V | |
Heater Current | 2.5 A | |
Heater Voltage | 2.5 V | |
Item Diameter | 55 mm | |
Item Height | 150 mm | |
Output Power (POut) | 3.0 W | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | 15 W | |
Plate Load Resistance | 2.5 kΩ | |
Plate Voltage (Ua) | ≤ 450 V, 250 V typical | |
Transconductance (S) | 5.5 mA/V | |
T-2A3-GOLD-EH - Single version | Bulb Temperature | 150°C |
Cathode Current (Ik) | 100 mA | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.51 MΩ | |
Grid Voltage (Ug) | -42 V | |
Heater Current | 2.5 A | |
Heater Voltage | 2.5 V | |
Item Diameter | 55 mm | |
Item Height | 150 mm | |
Output Power (POut) | 3.0 W | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | 15 W | |
Plate Load Resistance | 2.5 kΩ | |
Plate Voltage (Ua) | ≤ 450 V, 250 V typical | |
Transconductance (S) | 5.5 mA/V |
Specification Sheet for Single | T-2A3-GOLD-EH |
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Product Reviews
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!