NJ7P SQL Tube Database Query

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12FK6
Twin Diode - Low-Mu Triode

EIA Base & Outline

EIA Base: 7BTEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 12FM6
Substitutes ................................... 12AE6
Source ........................................ ARRL HB - 1964

Mechanical Data

Source ........................................ ARRL HB - 1964
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7BT
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 10-16 V
Heater Current ................................ 0.15 A

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ ARRL HB - 1964
Input ......................................... 1.8 pf
Output ........................................ 0.7 pf
Grid to Plate ................................. 1.6 pf

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 16 V
Grid No. 1 Voltage ............................ 0 V
Amplification Factor .......................... 7.4
Plate Resistance (approx) ..................... 6.2K Ω
Transconductance .............................. 1200 µMho
Plate Current ................................. 1.3 mA

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Mon, 03 Oct 2022 16:47:49 -0700