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6K11
Medium-Mu Triode - Twin High-Mu Triode

Base & Bulb ( GE DS 12/60)

Substitute Data

Preferred Substitutes ......................... 6Q11
Substitutes ................................... 6AV11

Application

Duodecar type used in general purpose applications. Requires duodecar 12-contact socket.

Mechanical Data

Bulb .......................................... T-9
Base .......................................... E12-70 Button 12-Pin
Outline ....................................... 9-56
EIA Base ...................................... 12BY
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A
Heater Warm-up Time ........................... 11 s
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
Total DC and Peak ......................... 200 V

Direct Interelectrode Capacitances (approx)

Triode 1
Input ......................................... 1.9 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 1.3 pf

Direct Interelectrode Capacitances (approx)

Triode 2
Input ......................................... 1.8 pf
Output ........................................ 0.7 pf
Grid to Plate ................................. 1.3 pf

Direct Interelectrode Capacitances (approx)

Triode 3
Input ......................................... 1.8 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 1.3 pf

Maximum Ratings (Design Center Values)

Triode 1
Plate Voltage ................................. 330 V
Negative Grid No. 1 Voltage ................... -50 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 2.75 W
Cathode Current ............................... 20 mA

Maximum Ratings (Design Center Values)

Triode 2/3
Plate Voltage ................................. 330 V
Negative Grid No. 1 Voltage ................... -50 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 1.0 W

Characteristics and Typical Operation

Triode 1 Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -8.5 V
Amplification Factor .......................... 17
Plate Resistance (approx) ..................... 7.7K Ω
Transconductance .............................. 2200 µ
Plate Current ................................. 10.5 mA
Grid No. 1 Voltage for Ib ..................... 10 µa @ -24 V

Characteristics and Typical Operation

Triode 2/3 Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -2.0 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 62.5K Ω
Transconductance .............................. 1600 µ
Plate Current ................................. 1.2 mA

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