NJ7P SQL Tube Database Query

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6DZ8
High-Mu Triode - Pentode

EIA Base & Outline

Substitute Data

Substitutes ................................... 6FY8
Source ........................................ GE - 1973

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
Maximum Overall Height ........................ 3.125 In.
Maximum Seated Height ......................... 2.875 In.
Maximum Diameter .............................. 0.875 In.
EIA Base ...................................... 9JE

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 135 V
Plate Dissipation ............................. 6.5 W
Grid No. 2 Dissipation ........................ 1.5 W

Triode
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V
Plate Dissipation ............................. 0.75 W

Characteristics and Typical Operation

Pentode Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 145 V
Grid No. 2 Voltage ............................ 120 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 180 Ω
Transconductance .............................. 7500 µ
Plate Current ................................. 45 mA
Grid No. 2 Current ............................ -6.0 mA
Load Resistance ............................... 2.5K Ω
Power Output (approx) ......................... 2 W

Triode Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 120 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 1500 Ω
Amplification Factor .......................... 100
Transconductance .............................. 1400 µ
Plate Current ................................. 0.8 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

Thu, 18 Aug 2022 10:10:00 -0700