NJ7P SQL Tube Database Query

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A horizontal ribbon.

6T8
Triple Diode - High-Mu Triode

EIA Base & Outline

EIA Base: 9EEIA Bulb: 6-2
Source ........................................ TungSol

Application

Source ........................................ TungSol
Miniature type used as combined audio amplifier, AM detector and FM detector in AM/FM radio receivers.. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ TungSol
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 9E
Mounting Position ............................. Any

Electrical Data

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

Direct Interelectrode Capacitances (approx)

Diode 1
Source ........................................ TungSol
Output ........................................ 3.8 pf

Diode 2
Source ........................................ TungSol
Output ........................................ 4.5 pf

Diode 3
Source ........................................ TungSol
Output ........................................ 3.8 pf

Triode
Source ........................................ TungSol
Input ......................................... 1.6 pf
Output ........................................ 1 pf
Grid to Plate ................................. 2.2 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ TungSol
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 1.0 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 54K Ω
Transconductance .............................. 1300 µMho
Plate Current ................................. 0.8 mA

Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 58K Ω
Transconductance .............................. 1200 µMho
Plate Current ................................. 1 mA

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Tue, 04 Oct 2022 17:01:30 -0700