NJ7P SQL Tube Database Query

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6KT8
High-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9QPEIA Bulb: 6-2
Source ........................................ RCA RC-29 - 1975

Mechanical Data

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

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 7.5 pf
Output ........................................ 2.2 pf
Grid to Plate ................................. 0.046 pf

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.2 pf
Output ........................................ 1.6 pf
Grid to Plate ................................. 3 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 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 ............................. 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) ..................... 31.5K Ω
Transconductance .............................. 3200 µMho
Plate Current ................................. 1.8 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) ..................... 150K Ω
Transconductance .............................. 10000 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 4.5 mA

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Tue, 29 Nov 2022 00:49:32 -0700