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6AK10
Triple Triode

Base & Bulb ( GE DS 10/68)

Mechanical Data

Bulb .......................................... T-9
Base .......................................... E12-70 Button 12-Pin
Outline ....................................... 9-59
EIA Base ...................................... 12FE
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 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)

Triode 1
Input ......................................... 4.2 pf
Output ........................................ 0.3 pf
Grid to Plate ................................. 3.2 pf

Direct Interelectrode Capacitances (approx)

Triode 2
Input ......................................... 4.2 pf
Output ........................................ 0.4 pf
Grid to Plate ................................. 3.0 pf

Direct Interelectrode Capacitances (approx)

Triode 3
Input ......................................... 4.2 pf
Output ........................................ 0.54 pf
Grid to Plate ................................. 3.0 pf

Maximum Ratings (Design Center Values)

Each Triode
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 2.0 W
Grid No. 1 Circuit Resistance
Fixed Bias .................................. 500K Ω
Self Bias ................................... 500K Ω

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 200 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ....................... 230 Ω
Amplification Factor .......................... 53
Plate Resistance (approx) ..................... 7500 Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 10 mA
Grid No. 1 Voltage for Ib ..................... 100 µa @ -7 V

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