NJ7P SQL Tube Database Query

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6R8
Triple Diode - Triode

EIA Base & Outline

EIA Base: 9EEIA Bulb: 6-2

Substitute Data

Substitutes ................................... 6T8
Source ........................................ TungSol

Mechanical Data

Source ........................................ TungSol
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-2
EIA Base ...................................... 9E

Electrical Data

Source ........................................ TungSol
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ TungSol
Input ......................................... 1.5 pf
Output ........................................ 1.1 pf
Grid to Plate ................................. 2.4 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ TungSol
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 2.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -9 V
Amplification Factor .......................... 16
Plate Resistance (approx) ..................... 8.5K Ω
Transconductance .............................. 1900 µMho
Plate Current ................................. 9.5 mA
Load Resistance ............................... 10K Ω
Power Output (approx) ......................... 0.3 W

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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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Mon, 15 Aug 2022 18:09:19 -0700