NJ7P SQL Tube Database Query

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6AD8
Twin Diode - Pentode

EIA Base & Outline

EIA Base: 9T

Substitute Data

Substitutes ................................... 6DC8 6N8

Mechanical Data

EIA Base ...................................... 9T

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 4.0 pf
Output ........................................ 4.6 pf
Grid to Plate ................................. 0.002 pf

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 85 V
Grid No. 1 Voltage ............................ -2 V
Plate Resistance (approx) ..................... 1M Ω
Transconductance .............................. 1100 µMho
Plate Current ................................. 6.7 mA
Grid No. 2 Current ............................ 2.3 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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Complete Tube Manuals:
Tube Manual Index from NJ7P

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Wed, 08 Feb 2023 23:47:30 -0700