NJ7P SQL Tube Database Query

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6GK7
Pentode

EIA Base & Outline

EIA Base: 9AQ

Substitute Data

Substitutes ................................... 6EH7 6EJ7
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
Maximum Overall Height ........................ 2.406 In.
Maximum Seated Height ......................... 2.156 In.
Maximum Diameter .............................. 0.875 In.
EIA Base ...................................... 9AQ

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ GE - 1973
Input ......................................... 8.5 pf
Output ........................................ 3.3 pf
Grid to Plate ................................. 0.005 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 2.8 W
Grid No. 2 Dissipation ........................ 1.1 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 135 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 82 Ω
Plate Resistance (approx) ..................... 275K Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 7.0 mA
Grid No. 2 Current ............................ 3.5 mA

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Complete Tube Manuals:
Tube Manual Index from NJ7P

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Sat, 04 Dec 2021 19:46:50 -0700