NJ7P SQL Tube Database Query

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A horizontal ribbon.

6MJ8
Medium-Mu Triple Triode

EIA Base & Outline

EIA Base: 12HGEIA Bulb: 9-60
Source ........................................ GE DS 11/67

Application

Source ........................................ GE DS 11/67
Duodecar type used in matrixing-amplifier circuits of color and bw tv receivers. Requires duodecar 12-contact socket.

Mechanical Data

Source ........................................ GE DS 11/67
Bulb .......................................... T-9
Base Type ..................................... E12-70 Button 12-Pin
EIA Outline ................................... 9-60
EIA Base ...................................... 12HG
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ GE DS 11/67
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V
Heater Negative with Respect to Cathode
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ GE DS 11/67
Input ......................................... 2.9 pf
Output ........................................ 0.36 pf
Grid to Plate ................................. 2.8 pf

Triode 2
Source ........................................ GE DS 11/67
Input ......................................... 2.9 pf
Output ........................................ 0.6 pf
Grid to Plate ................................. 2.8 pf

Triode 3
Source ........................................ GE DS 11/67
Input ......................................... 3.0 pf
Output ........................................ 0.7 pf
Grid to Plate ................................. 2.8 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ GE DS 11/67
Plate Voltage ................................. 330 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 3.0 W
Grid No. 1 Circuit Resistance
Self Bias .................................. 1M Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE DS 11/67
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -10.5 V
Amplification Factor .......................... 17
Plate Resistance (approx) ..................... 5.6K Ω
Transconductance .............................. 3000 µMho
Plate Current ................................. 10 mA
Grid No. 1 Voltage for Ib ..................... 50 µa @ -23 V

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Mon, 27 Jun 2022 10:37:35 -0700