NJ7P SQL Tube Database Query

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A horizontal ribbon.

6GH8A
Medium-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9AEEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 6GJ8 6EA8 6LM8
Substitutes ................................... 6AX8 6HL8 6KD8 6U8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in multivibrator-type horizontal-deflection circuit and for agc-amplifier or sync-separator applications in color and BW TV receivers. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-2
EIA Base ...................................... 9AE

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 5 pf
Output ........................................ 2.6 pf
Grid to Plate ................................. 0.02 pf

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3 pf
Output ........................................ 1.4 pf
Grid to Plate ................................. 1.7 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 350 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 2.5 W
Grid No. 2 Dissipation ........................ 0.55 W

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 2.5 W

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 46
Plate Resistance (approx) ..................... 5400 Ω
Transconductance .............................. 8500 µMho
Plate Current ................................. 13.5 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -1 V
Plate Resistance (approx) ..................... 200K Ω
Transconductance .............................. 7500 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 4 mA

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A horizontal ribbon.

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Sat, 25 Mar 2023 19:49:54 -0700