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Power - Triode ·Triode-Triode

10GF7A

Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, derived from the GF7 family for demanding driver and output applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9E
Base pins
9
Nominal heater
9.7 V / 600 mA

Description

Novar types used as combined vertical-deflection oscil- i 9QD lator and vertical-deflection amplifiers in color and black-and-white television receivers. Outlines section, 30A; requires novar 9-contact socket. For curves of average plate characteristics for Unit No.l and Unit No.2, refer to types 6DR7 (Unit No.l) and 6EM7, respectively. Types 10GF7A and 13GF7A are identical with type 6GF7A except for heater ratings. 6GF7A 10GF7A 13GF7A

Socket description

Novar 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9E
Base pins
9
Nominal heater voltage
9.7 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
40000 Ω
Transconductance
0.0015 S
Amplification factor
60
Max plate voltage
330 V
Max plate dissipation
1.5 W

high-mu

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
1000 Ω
Transconductance
0.007 S
Amplification factor
6
Max plate voltage
330 V
Max plate dissipation
10 W

low-mu

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum Plate Voltage

    330 V

    Inherited from explicitly referenced 6-volt parent type

  • Plate Dissipation

    1.5 W

    Inherited from explicitly referenced 6-volt parent type

Characteristics

  • Transconductance

    1500 µS

    Inherited from explicitly referenced 6-volt parent type

  • Amplification Factor

    60

    Inherited from explicitly referenced 6-volt parent type

SECTION 2

Triode

Other

  • Maximum Plate Voltage

    330 V

    Inherited from explicitly referenced 6-volt parent type

  • Plate Dissipation

    10 W

    Inherited from explicitly referenced 6-volt parent type

Characteristics

  • Transconductance

    7000 µS

    Inherited from explicitly referenced 6-volt parent type

  • Amplification Factor

    6

    Inherited from explicitly referenced 6-volt parent type

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Grid-No.l Circuit Resistance

    1 megohm

    Published value from supplied target entry

  • # Pulse duration must not exceed

    10

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    13 volts

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

  • Plate Voltage

    150 volts

    Published value from supplied target entry

  • Grid Voltage

    -20 volts

    Published value from supplied target entry

  • Amplification Factor

    5.4

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    760 ohms

    Published value from supplied target entry

  • Transconductance

    7200

    Published value from supplied target entry

  • For plate current of

    5.5 volts

    Published value from supplied target entry

  • For plate current of

    -45 volts

    Published value from supplied target entry

  • Plate Current

    50

    Published value from supplied target entry

  • For plate voltage of

    95 volts

    Published value from supplied target entry

  • For grid voltage of

    10 volts

    Published value from supplied target entry

  • DC Plate Voltage

    330 volts

    Published value from supplied target entry

  • Peak Negative-Pulse Grid Voltage

    400

    Published value from supplied target entry

  • Peak Cathode Current

    175 mA

    Published value from supplied target entry

  • Average Cathode Current

    60 mA

    Published value from supplied target entry

  • Plate Dissipation

    11 watts

    Published value from supplied target entry

  • # Pulse duration must not exceed

    2.5

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    9.45 volts

    Published value from supplied target entry

  • Heater Current

    0.3 ampere

    Published value from supplied target entry

  • Plate Voltage

    125 volts

    Published value from supplied target entry

  • Grid-No

    125 volts

    Published value from supplied target entry

  • Grid-No

    -1 volts

    Published value from supplied target entry

  • Amplification Factor

    46

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    200000 ohms

    Published value from supplied target entry

  • Transconductance

    7500 mhos

    Published value from supplied target entry

  • Plate Current

    12 mA

    Published value from supplied target entry

Capacitance

  • Direct Interelectrode Capacitances (Approx.) : Unit No.l Unit No

    2

    Published value from supplied target entry

  • Grid to Plate

    9 pF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    6.5 pF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    1.4 pF

    Published value from supplied target entry

  • Grid to Plate

    1.7 pF

    Published value from supplied target entry

  • Grid to Cathode, Heater, Pentode Grid No

    3

    Published value from supplied target entry

  • Plate to Cathode, Heater, Pentode Grid No

    3

    Published value from supplied target entry

  • Heater to Cathode

    3 pF

    Published value from supplied target entry

  • Plate to Cathode, Heater, Grid No

    3

    Published value from supplied target entry

  • Heater to Cathode, Grid No

    3 pF

    Published value from supplied target entry