NJ7P SQL Tube Database Query

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6FH6
Beam Power Pentode

EIA Base & Outline

EIA Base: 6AMEIA Bulb: 12-19

Substitute Data

Preferred Substitutes ......................... 6DQ6 6GW6
Substitutes ................................... 6BQ6
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-12
EIA Outline ................................... 12-19
EIA Base ...................................... 6AM

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ GE - 1973
Input ......................................... 33 pf
Output ........................................ 8 pf
Grid to Plate ................................. 0.4 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 770 V
Plate Dissipation ............................. 17 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -22.5 V
Plate Resistance (approx) ..................... 12K Ω
Transconductance .............................. 6000 µMho
Plate Current ................................. 75 mA
Grid No. 2 Current ............................ 1.7 mA

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Sat, 10 Dec 2022 02:34:13 -0700