NJ7P SQL Tube Database Query

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12AJ6
Twin Diode - High-Mu Triode

EIA Base & Outline

EIA Base: 7BTEIA Bulb: 5-2

Substitute Data

Substitutes ................................... 12AE6 12FM6 12FT6
Source ........................................ Sylvania - 1959

Application

Source ........................................ Sylvania - 1959
Miniature type used as a second detector audio amplifier. This tube is designed to operate where heater and plate voltage ar supplied directly from a 12 volt battery. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ Sylvania - 1959
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 ........................................ Sylvania - 1959
Heater Voltage ................................ 10-16 V
Heater Current ................................ 0.15 A

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ Sylvania - 1959
Input ......................................... 2.2 pf
Output ........................................ 0.8 pf
Grid to Plate ................................. 2 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ Sylvania - 1959
Plate Voltage ................................. 30 V

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ Sylvania - 1959
Plate Voltage ................................. 12.6 V
Grid No. 1 Voltage ............................ 0 V
Amplification Factor .......................... 55
Plate Resistance (approx) ..................... 45K Ω
Transconductance .............................. 1200 µMho
Plate Current ................................. 0.75 mA

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Fri, 24 Jun 2022 18:10:27 -0700