NJ7P SQL Tube Database Query

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6AK8
Triple Diode - High-Mu Triode

EIA Base & Outline

EIA Base: 9EEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... EABC80 6T8
Substitutes ................................... 6R8
Source ........................................ RFT EABC80 DS

Mechanical Data

Source ........................................ RFT EABC80 DS
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature 9-Pin Noval
EIA Outline ................................... 6-2
EIA Base ...................................... 9E

Electrical Data

Source ........................................ RFT EABC80 DS
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A
Maximum Heater-Cathode Voltage ................ 150 V

Direct Interelectrode Capacitances (approx)

Diode 1
Source ........................................ RFT EABC80 DS
Input ......................................... 1 pf
Grid to Plate ................................. pf

Diode 2/3
Source ........................................ RFT EABC80 DS
Input ......................................... 4.5 pf
Grid to Plate ................................. pf

Triode
Source ........................................ RFT EABC80 DS
Input ......................................... 1.9 pf
Output ........................................ 1.4 pf
Grid to Plate ................................. 2.3 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ RFT EABC80 DS
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 1 W
Cathode Current ............................... 1.3 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 3M Ω
Self Bias .................................. 22M Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RFT EABC80 DS
Plate Voltage ................................. 200 V
Grid No. 1 Voltage ............................ -2 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 46K Ω
Plate Current ................................. 1.35 mA

Class A Amplifier
Source ........................................ RFT EABC80 DS
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 58K Ω
Plate Current ................................. 1 mA

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Tue, 09 Aug 2022 07:24:48 -0700