NJ7P SQL Tube Database Query

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6DJ8
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 6ES8 6FW8
Substitutes ................................... 6BK7
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as cascode amplifier in vhf color and black-and-white television tuners. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
EIA Outline ................................... 6-2
EIA Base ...................................... 9AJ
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.365 A

Direct Interelectrode Capacitances (approx)

Each Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.3 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 1.4 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 130 V
Plate Dissipation ............................. 1.8 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -1.3 V
Amplification Factor .......................... 33
Transconductance .............................. 12.5K µMho
Plate Current ................................. 15 mA

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Sat, 26 Nov 2022 02:39:44 -0700