NJ7P SQL Tube Database Query

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6FW7
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 8LM
Source ........................................ GE - 1973

Application

Source ........................................ GE - 1973
Subminiature type used in compact, ruggedized radio equipment.

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... Special
Base Type ..................................... Metal Subminiature
Maximum Overall Height ........................ 1.969 In.
Maximum Diameter .............................. 0.512 In.
EIA Base ...................................... 8LM

Electrical Data

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

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V

Triode 2
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V

Characteristics and Typical Operation

Triode 1 Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -1.0 V
Amplification Factor .......................... 36
Plate Resistance (approx) ..................... 6000 Ω
Transconductance .............................. 6000 µMho
Plate Current ................................. 7.0 mA

Triode 2 Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -1.0 V
Amplification Factor .......................... 36
Plate Resistance (approx) ..................... 3800 Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 9.0 mA

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Thu, 02 Feb 2023 23:22:24 -0700