NJ7P SQL Tube Database Query

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6FG5
Frame-Grid Pentode

EIA Base & Outline

EIA Base: 7GAEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 6FS5
Substitutes ................................... 6GU5
Source ........................................ ARRL HB - 1964

Mechanical Data

Source ........................................ ARRL HB - 1964
Bulb .......................................... T-5 1/2
EIA Outline ................................... 5-2
EIA Base ...................................... 7GA

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ ARRL HB - 1964
Input ......................................... 4.2 pf
Output ........................................ 2.8 pf
Grid to Plate ................................. 0.02 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 275 V
Grid No. 2 Voltage ............................ 275 V
Plate Dissipation ............................. 2.75 W
Grid No. 2 Dissipation ........................ 0.15 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -0.2 V
Plate Resistance (approx) ..................... 250K Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 9 mA
Grid No. 2 Current ............................ 0.42 mA

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This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

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Complete Tube Manuals:
Tube Manual Index from NJ7P

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Sat, 25 Jun 2022 17:09:37 -0700