Vacuum Tube - 12AT7 / ECC81, JJ Electronics

Vacuum Tube - 12AT7 / ECC81, JJ Electronics

JJ Electronics
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
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Pictured: RegularPictured: GoldPictured: RegularPictured: Gold

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The JJ Electronic 12AT7 / ECC81 is a good choice for phase inverters, reverb drivers, and general preamp use. This tube offers low noise, low microphonics, and warm smooth tones at a great price. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. It can also be used to replace 12AX7 tubes in position 1 to reduce gain.

SKU:
T-12AT7-JJ-X
Item ID:
004428
Brand:
JJ Electronics
RoHS Compliant
Part Numbers
Pin TypeOur Part NumberUPC/EANJJ Electronics Part Number
GoldT-12AT7-GOLD-JJ609722123471 ECC81 / 12AT7 - GOLD
RegularT-12AT7-JJ844632064036 ECC81 - 12AT7
Product Measurements by Type
Body Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V
Packaging Information
Packaging Dimensions1 in. × 1 in. × 2.5 in.
Weight (Packaging)Gold versionT-12AT7-GOLD-JJ0.03 lbs.
Regular versionT-12AT7-JJ0.029 lbs.
Product Measurements by Item
T-12AT7-JJ - Regular versionBody Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V
T-12AT7-GOLD-JJ - Gold versionBody Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V

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