NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6BN8
Twin Diode - High-Mu Triode

EIA Base & Outline

EIA Base: 9EREIA Bulb: 6-3

Substitute Data

Substitutes ................................... 6BJ8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in color and black-and-white television receiver applications. The triode unit is used in burst-amplifier, af amplifier, and low-frequency oscillator applications.

Source ........................................ RCA RC-29 - 1975
The diode units are used in phase-detector, ratio-detector, or discriminator, and horizontal afc discriminator circuits. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
Base Type ..................................... Small Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9ER
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A
Heater Warm-up Time ........................... 11 s
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V
Heater Negative with Respect to Cathode
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.6 pf
Output ........................................ 0.25 pf
Grid to Plate ................................. 2.5 pf

Each Diode
Source ........................................ RCA RC-29 - 1975
Output ........................................ 1.9 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 1.7 W
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 1M Ω
Self Bias .................................. 1M Ω

Each Diode
Source ........................................ RCA RC-29 - 1975
Steady State Peak Plate Current Each Plate .... 54 mA
Steady State DC Output Current Each Plate ..... 9 mA

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 75
Plate Resistance (approx) ..................... 21K Ω
Transconductance .............................. 3500 µMho
Plate Current ................................. 1.5 mA
Grid No. 1 Voltage for Ib ..................... 10 µa @ -2.5 V

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 28K Ω
Transconductance .............................. 2500 µMho
Plate Current ................................. 1.6 mA
Grid No. 1 Voltage for Ib ..................... 10 µa @ -5.5 V

A horizontal ribbon.

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A horizontal ribbon.

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Fri, 19 Aug 2022 23:32:29 -0700