NJ7P SQL Tube Database Query

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6414
Medium-Mu Twin Triode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 6-3
EIA Base ...................................... 9A

Electrical Data

Heater Voltage ................................ 12.6/6.3 V
Heater Current ................................ 0.225/0.45 A

Direct Interelectrode Capacitances (approx)

Triode 1
Input ......................................... 4.0 pf
Output ........................................ 0.47 pf
Grid to Plate ................................. 3.0 pf

Triode 2
Input ......................................... 4.0 pf
Output ........................................ 0.38 pf
Grid to Plate ................................. 3.0 pf

Maximum Ratings (Design Center Values)

Triode 1
Plate Voltage ................................. 200 V
Plate Dissipation ............................. 2.0 W

Triode 2
Plate Voltage ................................. 200 V
Plate Dissipation ............................. 2.0 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 180 V
Grid No. 1 Voltage ............................ -2.0 V
Amplification Factor .......................... 42.5
Plate Resistance (approx) ..................... 7650 Ω
Transconductance .............................. 5550 µ
Plate Current ................................. 8.0 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.

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Tue, 04 Oct 2022 19:49:07 -0700