Vacuum Tube - 12AU7 / B749, Genalex Gold Lion, Gold Pin

Vacuum Tube - 12AU7 / B749, Genalex Gold Lion, Gold Pin

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Genalex Gold Lion ECC82/B749 (12AU7) dual triode preamp tube with gold pins. Made in Russia. The original Genalex Gold Lion ECC82/B749 is one of the most rare 12AU7 types ever made. This tube featured superb linearity, balanced sections, and extremely low noise. The reissue Genalex Gold Lion ECC82/B749 features gold plated pins and has been carefully engineered to recreate all of the attributes of the original. This tube is a premium replacement for all 12AU7, ECC82, 5814, and 6189 types.

Item ID:
Product Measurements by Type
Amplification Factor≥ 13
Capacitance, Transfer1.5 pF
Capacitance, input1.6 pF
Capacitance, output0.5 pF
Cathode to Heater Voltage200 V
Grid Circuit Resistance (Rg), Automatic Bias1 MΩ
Grid Circuit Resistance (Rg), Fixed Bias0.25 MΩ
Grid Reverse Current0.2 μA
Heater Current135 mA - 275 mA
Heater Voltage6.0 - 6.6 V / 12.0 - 13.2 V
Plate Current (Ia)22 mA
Plate Dissipation, per triode (Wa)2.75 W
Plate Voltage (Ua)300 V
Transconductance (S)≥ 1.75 mA/V
Packaging Information
Packaging Dimensions2.75 in. × 1 in. × 1 in.
Weight (Packaging)0.0353 lbs.

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PDF: Specification Sheet Specification Sheet1.88 MB

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