NJ7P SQL Tube Database Query

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6GN8
High-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6EB8 6LY8 6JT8
Substitutes ................................... 6AW8 6CX8 6HF8 6HZ8 6JE8 6JV8 6KR8 6KS8 6KV8 6LB8 6LF8 6LQ8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in color and bw tv receiver applications. Triode unit is used as sync-separator, sync-clipper, phase-inverter or sound if amplifier. Pentode unit is used in output stage of video amplifier. Requires miniature 9-contact socket.

Mechanical Data

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

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.75 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 11 pf
Output ........................................ 4.2 pf
Grid to Plate ................................. 0.1 pf

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 2.4 pf
Output ........................................ 0.36 pf
Grid to Plate ................................. 4.4 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 5 W
Grid No. 2 Dissipation ........................ 1.1 W

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1 W

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -2 V
Amplification Factor .......................... 100
Plate Resistance (approx) ..................... 37K Ω
Transconductance .............................. 2700 µ
Plate Current ................................. 2 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 100 Ω
Plate Resistance (approx) ..................... 60K Ω
Transconductance .............................. 11.5K µ
Plate Current ................................. 25 mA
Grid No. 2 Current ............................ 5.5 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

Tue, 28 Mar 2023 23:50:34 -0700