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6AG11
Twin Diode-Twin High-Mu Triode

Base & Bulb ( GE DS 4/63)

Substitute Data

Substitutes ................................... 6AY11

Application

Duodecar type containing two diodes and two high-mu triodes, used primarily in FM stereo multiplex service. Requires 12-contact socket.

Mechanical Data

Bulb .......................................... T-9
Base .......................................... E12-70 Button 12-Pin
Outline ....................................... 9-56
EIA Base ...................................... 12DA
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.75 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component .............................. 100 V
Total DC and Peak ......................... 200 V
Heater Negative with Respect to Cathode
DC Component .............................. 200 V
Total DC and Peak ......................... 200 V

Direct Interelectrode Capacitances (approx)

Each Diode
Input ......................................... 2.2 pf
Output ........................................ pf
Grid to Plate ................................. pf

Direct Interelectrode Capacitances (approx)

Each Triode
Input ......................................... 3.8 pf
Output ........................................ 0.24 pf
Grid to Plate ................................. 1.8 pf

Maximum Ratings (Design Center Values)

Each Triode
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 2 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 125 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 66
Plate Resistance (approx) ..................... 8500 Ω
Transconductance .............................. 7800 µ
Plate Current ................................. 7.5 mA
Grid No. 1 Voltage for Ib ..................... 30 µa @ -5 V

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