NJ7P SQL Tube Database Query

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6DB6
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 7CMEIA Bulb: 5-2

Substitute Data

Substitutes ................................... 6AS6 6BJ6
Source ........................................ TungSol

Application

Source ........................................ TungSol
Miniature type used as a color demodulator in color television receivers. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ TungSol
Bulb .......................................... T-5 1/2
EIA Outline ................................... 5-2
EIA Base ...................................... 7CM

Electrical Data

Source ........................................ TungSol
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ TungSol
Input ......................................... 6 pf
Output ........................................ 5 pf
Grid to Plate ................................. 0.0035 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ TungSol
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 3 W
Grid No. 2 Dissipation ........................ 1.0 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -1 V
Plate Resistance (approx) ..................... 50K Ω
Transconductance .............................. 2050 µMho
Plate Current ................................. 5.8 mA
Grid No. 2 Current ............................ 6.6 mA

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Fri, 24 Jun 2022 18:42:38 -0700