NJ7P SQL Tube Database Query

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6GL7
Dissimiliar Twin Triode

EIA Base & Outline

EIA Base: 8BDEIA Bulb: 9-5

Substitute Data

Preferred Substitutes ......................... 6EA7
Substitutes ................................... 6DN7 6EM7
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-9
EIA Outline ................................... 9-5
EIA Base ...................................... 8BD

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.05 A

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ GE - 1973
Plate Voltage ................................. 350 V
Plate Dissipation ............................. 1.0 W

Triode 2
Source ........................................ GE - 1973
Plate Voltage ................................. 550 V
Plate Dissipation ............................. 10 W

Characteristics and Typical Operation

Triode 1 Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 66
Plate Resistance (approx) ..................... 30K Ω
Transconductance .............................. 2200 µMho
Plate Current ................................. 2 mA

Triode 2 Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 175 V
Grid No. 1 Voltage ............................ -25 V
Amplification Factor .......................... 5
Plate Resistance (approx) ..................... 780 Ω
Transconductance .............................. 6400 µMho
Plate Current ................................. 46 mA

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Tue, 28 Mar 2023 23:23:54 -0700