NJ7P SQL Tube Database Query

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6AK4
Medium-Mu Triode

EIA Base & Outline

EIA Base: 8DKEIA Bulb: 3-1

Substitute Data

Substitutes ................................... 5718 5897 6814 8527
Source ........................................ Syl DS 05/52

Application

Source ........................................ Syl DS 05/52
General purpose, Medium Mu, UHF subminiature triode. Commercial version og 6K4. Output of approximately 3/4 watt at 500 MHz.

Mechanical Data

Source ........................................ Syl DS 05/52
Bulb .......................................... T-3
Base Type ..................................... Subminiature Button flexable leads
EIA Outline ................................... 3-1
EIA Base ...................................... 8DK
Cathode ....................................... Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ Syl DS 05/52
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.15 A
Maximum Heater-Cathode Voltage ................ 90 V

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ Syl DS 05/52
Shielded Unshielded
Input ......................................... 2.2 1.9 pf
Output ........................................ 2.2 0.8 pf
Grid to Plate ................................. 1.3 1.4 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ Syl DS 05/52
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 3.0 W
Cathode Current ............................... 20 mA

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ Syl DS 05/52
Plate Voltage ................................. 200 V
Grid No. 1 Voltage ............................ -6.5 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 680 Ω
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 5.3K Ω
Transconductance .............................. 3800 µMho
Plate Current ................................. 9.5 mA
Grid No. 1 Voltage for Ib ..................... 10 µa @ -20 V

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Tue, 29 Nov 2022 00:30:33 -0700