NJ7P SQL Tube Database Query

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6KU8
Twin Diode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9LTEIA Bulb: 9-69

Substitute Data

Substitutes ................................... 6ET7

Mechanical Data

Bulb .......................................... T-9
EIA Outline ................................... 9-69
EIA Base ...................................... 9LT

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.725 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 12 pf
Output ........................................ 3 pf
Grid to Plate ................................. 0.1 pf

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 82 Ω
Plate Resistance (approx) ..................... 50K Ω
Transconductance .............................. 20K µMho
Plate Current ................................. 17 mA
Grid No. 2 Current ............................ 3.5 mA

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This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

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Thu, 30 Jun 2022 04:27:30 -0700