NJ7P SQL Tube Database Query

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A horizontal ribbon.

6MD8
Medium-Mu Triple Triode

EIA Base & Outline

EIA Base: 9RQ
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Novar type used in matrixing circuits of color and bw tv receivers. Requires novar 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-9
Base Type ..................................... Novar 9-Pin
Maximum Overall Height ........................ 2.960 In.
Maximum Seated Height ......................... 2.580 In.
Maximum Diameter .............................. 1.188 In.
EIA Base ...................................... 9RQ

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.6 pf
Output ........................................ 0.48 pf
Grid to Plate ................................. 3 pf

Triode 2
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.6 pf
Output ........................................ 0.48 pf
Grid to Plate ................................. 3 pf

Triode 3
Source ........................................ RCA RC-29 - 1975
Input ......................................... 3.4 pf
Output ........................................ 0.36 pf
Grid to Plate ................................. 3 pf

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 3 W

Triode 2
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 3 W

Triode 3
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 3 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ 10.5 V
Amplification Factor .......................... 17
Plate Resistance (approx) ..................... 5.5K Ω
Transconductance .............................. 3100 µMho
Plate Current ................................. 11.5 mA

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A horizontal ribbon.

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Wed, 07 Dec 2022 13:07:30 -0700