NJ7P SQL Tube Database Query

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6GF7A
Twin Triode

EIA Base & Outline

EIA Base: 9QDEIA Bulb: 9-107
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Novar type used as combined vertical-deflection oscillator and vertical-deflection amplifiers in color and black-and-white television receivers. Requires novar 9-contact socket.

Source ........................................ RCA RC-29 - 1975
For curves of average plate characteristics for unit 1, refer to 6DR7 (unit 1) and unit 2, refer to 6EM7 (unit 2).

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-9
EIA Outline ................................... 9-107
EIA Base ...................................... 9QD

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.985 A

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ RCA RC-29 - 1975
Input ......................................... 2.4 pf
Output ........................................ 0.26 pf
Grid to Plate ................................. 4.6 pf

Triode 2
Source ........................................ RCA RC-29 - 1975
Input ......................................... 6.5 pf
Output ........................................ 1.4 pf
Grid to Plate ................................. 9 pf

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1.5 W

Triode 2
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 11 W

Characteristics and Typical Operation

Triode 1 Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 64
Plate Resistance (approx) ..................... 40K Ω
Transconductance .............................. 1600 µMho
Plate Current ................................. 1.4 mA

Triode 2 Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 150 V
Grid No. 1 Voltage ............................ -20 V
Amplification Factor .......................... 5.4
Plate Resistance (approx) ..................... 750 Ω
Transconductance .............................. 7200 µMho
Plate Current ................................. 50 mA

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Fri, 19 Aug 2022 21:59:35 -0700