NJ7P SQL Tube Database Query

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6BX8
Twin Triode

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 6DJ8 6ES8
Substitutes ................................... 6BC8 6BQ7 6BS8 6BZ7 6BZ8
Source ........................................ GE - 1973

Application

Source ........................................ GE - 1973
Used as a cascode VHF RF amplifier in TV sets.

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-2
EIA Base ...................................... 9AJ

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.4 A
Heater Warm-up Time ........................... 11 s
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V
Heater Negative with Respect to Cathode
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Each Triode
Source ........................................ GE - 1973
Input ......................................... 2.4 pf
Output ........................................ 1.25 pf
Grid to Plate ................................. 1.4 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V
Plate Dissipation ............................. 2.0 W
Cathode Current ............................... 20 mA

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 65 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 25
Plate Resistance (approx) ..................... 3750 Ω
Transconductance .............................. 6700 µMho
Plate Current ................................. 9 mA
Grid No. 1 Voltage for Ib ..................... 10 µa @ -7 V

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Mon, 03 Oct 2022 03:41:04 -0700