NJ7P SQL Tube Database Query

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6BN4
Medium-Mu Triode

EIA Base & Outline

Application

Source ........................................ GE - 1973
Miniature type used as rf amplifier tube in grid-drive circuits of color and black-and-white television tuners. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7EG
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.2 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Heater Negative with Respect to Cathode
DC Component ............................ 100 V

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ GE - 1973
Input ......................................... 3.2 pf
Output ........................................ 1.4 pf
Grid to Plate ................................. 1.2 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ GE - 1973
Plate Voltage ................................. 275 V
Plate Dissipation ............................. 2.2 W
Cathode Current ............................... 22 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 0.5M Ω
Self Bias .................................. 0.5M Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 220 Ω
Amplification Factor .......................... 43
Plate Resistance (approx) ..................... 6.3K Ω
Transconductance .............................. 6800 µ
Plate Current ................................. 9 mA
Grid No. 1 Voltage for Ib ..................... 100 µa @ -6 V

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

Mon, 06 Feb 2023 18:08:22 -0700