NJ7P SQL Tube Database Query

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6DX4
Medium-Mu Triode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6DY4
Substitutes ................................... 6AF4 6T4 6AN4 6DZ4
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-5 1/2
EIA Outline ................................... 5-1
EIA Base ...................................... 7DK

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.2 A

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ GE - 1973
Input ......................................... 3.9 pf
Output ........................................ 1.5 pf
Grid to Plate ................................. 1.6 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V
Plate Dissipation ............................. 2.2 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 85 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 150 Ω
Amplification Factor .......................... 30
Plate Resistance (approx) ..................... 2700 Ω
Transconductance .............................. 11000 µ
Plate Current ................................. 10 mA

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Sun, 05 Feb 2023 20:11:25 -0700