NJ7P SQL Tube Database Query

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A horizontal ribbon.

6KE8
Medium-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9DCEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 6MG8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type with frame-grid pentode used as combined oscillator-mixer tube in tv receivers usinf an if in the order of 40 MHz. Requires miniature 9-contact socket.

Mechanical Data

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

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.4 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 5 pf
Output ........................................ 3.4 pf
Grid to Plate ................................. 0.015 pf

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 2.4 pf
Output ........................................ 2 pf
Grid to Plate ................................. 1.3 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 280 V
Grid No. 2 Voltage ............................ 280 V
Plate Dissipation ............................. 2 W
Grid No. 2 Dissipation ........................ 0.5 W

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 280 V
Plate Dissipation ............................. 2 W

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 68 Ω
Amplification Factor .......................... 40
Plate Resistance (approx) ..................... 5K Ω
Transconductance .............................. 8000 µMho
Plate Current ................................. 13 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 33 Ω
Plate Resistance (approx) ..................... 125K Ω
Transconductance .............................. 12K µMho
Plate Current ................................. 10 mA
Grid No. 2 Current ............................ 28 mA

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Mon, 06 Feb 2023 19:50:52 -0700