NJ7P SQL Tube Database Query

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6DK6
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 7CMEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 6CB6 6CF6 6DE6
Substitutes ................................... 6BZ6 6HQ6
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as if amplifier tube in color and black-and-white television receivers. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7CM
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 6.3 pf
Output ........................................ 1.9 pf
Grid to Plate ................................. 0.025 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 2.3 W
Grid No. 2 Dissipation ........................ 0.55 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -6.5 V
Transconductance .............................. 9800 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 3.8 mA

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 56 Ω
Plate Resistance (approx) ..................... 350K Ω
Transconductance .............................. 9800 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 3.8 mA

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Sat, 02 Jul 2022 07:25:28 -0700