NJ7P SQL Tube Database Query

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6AN4
UHF High-Mu Triode

EIA Base & Outline

EIA Base: 7DKEIA Bulb: 5-1

Substitute Data

Substitutes ................................... 6T4
Source ........................................ TungSol

Application

Source ........................................ TungSol
Miniature type used as mixer or rf amplifier in cathode-drive circuits of uhf television tuners covering the frequency range of 470 to 890 MHz. Requires miniature 7-contact socket.

Mechanical Data

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

Electrical Data

Source ........................................ TungSol
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.225 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ TungSol
Shielded Unshielded
Input ......................................... 3.3 2.9 pf
Output ........................................ 1.8 0.25 pf
Grid to Plate ................................. 1.7 1.7 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ TungSol
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 4 W
Cathode Current ............................... 30 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 100K Ω
Self Bias .................................. 500K Ω

Characteristics and Typical Operation

UHF Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 200 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 100 Ω
Amplification Factor .......................... 70
Transconductance .............................. 10K µMho
Plate Current ................................. 13 mA
Grid No. 1 Voltage for Ib ..................... 20 µa @ -7.0 V

UHF Mixer
Source ........................................ TungSol
Plate Voltage ................................. 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 270 Ω
Transconductance .............................. 2900 µMho
Plate Current ................................. 7 mA

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Tue, 09 Aug 2022 07:59:30 -0700