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Power - TV Vertical Output ·BeamPower

6DT5

Beam-power pentode designed as the vertical-deflection output amplifier in television receivers using 110-degree picture tubes, with scanning-oriented pulse ratings.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9NX
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 1.2 A

Description

The 6DT5 is a beam-power pentode designed as a vertical-deflection output amplifier in television receivers using 110-degree picture tubes.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9NX
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
1.2 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9NX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.0062 S
Max plate voltage
315 V
Max screen voltage
285 V
Max plate dissipation
9 W
Max screen dissipation
2 W
Max cathode current
55 mA

Vertical-deflection beam-power section.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Peak Positive Pulse Plate Voltage

    2200 V

    Absolute maximum

  • Peak Cathode Current

    190 mA

Characteristic

  • Plate Current

    44 mA

    250 V plate and screen

Capacitance

  • Grid-to-Plate Capacitance

    0.57 pF

Data set 02

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate voltage maximum

    315 V

  • Peak positive pulse plate voltage maximum

    2200 V

    Pulse

  • Grid2 dissipation maximum

    2 W

  • Typical grid2 voltage

    150 V

Characteristics

  • Grid1 cutoff voltage

    -35 V

Application

  • Application

    Vertical-deflection output amplifier

Data set 03

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Capacitance

  • Grid-to-plate capacitance

    0.57 pF

  • Input capacitance

    12.5 pF

  • Output capacitance

    4.9 pF

Other

  • Plate voltage

    250 V

    ClassA1

  • Screen voltage

    250 V

    ClassA1

  • Grid 1 voltage

    -16.5 V

    ClassA1

  • Plate current

    44 mA

    ClassA1

Data set 04

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Heater voltage

    6.3 V

  • Heater current

    1.2 A

  • Maximum plate voltage

    315 V

    VerticalDeflection

  • Peak positive pulse plate voltage

    2200 V

    VerticalDeflection

  • Maximum screen voltage

    285 V

    VerticalDeflection

  • Peak cathode current

    190 mA

    VerticalDeflection

  • Average cathode current

    55 mA

    VerticalDeflection

  • Plate dissipation

    9 W

Characteristic

  • Plate voltage

    250 V

    ClassA

  • Screen voltage

    250 V

    ClassA

  • Grid voltage

    -16.5 V

    ClassA

  • Plate current

    44 mA

    ClassA

  • Screen current

    1.5 mA

    ClassA

  • Transconductance

    6200 uS

    ClassA

Capacitance

  • Grid-to-plate capacitance

    0.57 pF

  • Input capacitance

    12.5 pF

  • Output capacitance

    4.9 pF

Data set 05

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Heater Voltage (ac/dc) 6.3

    12.6 V

    Published in approved 12DT5 target entry; Section1

  • Heater Current 1.2

    600 mA

    Published in approved 12DT5 target entry; Section1

  • Heater Warm-up Time (Average)

    11 seconds

    Published in approved 12DT5 target entry; Section1

  • of

    100 mA

    Published in approved 12DT5 target entry; Section1

  • of 100 mA — —

    -35 V

    Published in approved 12DT5 target entry; Section1

  • DC Plate Voltage

    315 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 (Screen-Grid) Voltage

    285 V

    Published in approved 12DT5 target entry; Section1

  • Peak Negative-Pulse Grid-No.l (Control-Grid) Voltage

    250 V

    Published in approved 12DT5 target entry; Section1

  • Peak Cathode Current

    190 mA

    Published in approved 12DT5 target entry; Section1

  • Average Cathode Current

    55 mA

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 Input

    2 W

    Published in approved 12DT5 target entry; Section1

  • For fixed-bias operation

    0.5 MΩ

    Published in approved 12DT5 target entry; Section1

  • For cathode-bias operation

    1 MΩ

    Published in approved 12DT5 target entry; Section1

  • Heater Voltage (ac/dc) 3.16 4.2

    6.3 V

    Published in approved 12DT5 target entry; Section1

  • Heater Current 0.6 0.45

    300 mA

    Published in approved 12DT5 target entry; Section1

  • Plate Voltage

    330 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.3 Voltage

    28 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 Supply Voltage

    330 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.l (Control-Grid) Voltage, Positive-bias value

    0 V

    Published in approved 12DT5 target entry; Section1

  • Plate Dissipation

    1.7 W

    Published in approved 12DT5 target entry; Section1

  • For grid-No.2 voltages up to

    165 V

    Published in approved 12DT5 target entry; Section1

  • For grid-No.2 voltages up to 165 volts

    1.1 W

    Published in approved 12DT5 target entry; Section1

  • For grid-No.2 voltages between 165 and

    330 V

    Published in approved 12DT5 target entry; Section1

  • For fixed-bias operation

    0.25 MΩ

    Published in approved 12DT5 target entry; Section1

  • For cathode-bias operation

    0.5 MΩ

    Published in approved 12DT5 target entry; Section1

Characteristic

  • Plate Voltage 60 80

    250 V

    Published in approved 12DT5 target entry; Section1

  • 0

    16.5 V

    Published in approved 12DT5 target entry; Section1

  • Transconductance

    6200 µS

    Published in approved 12DT5 target entry; Section1

  • Plate Current 95* 195«

    44 mA

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 Current 8.5> 19*

    1.5 mA

    Published in approved 12DT5 target entry; Section1

  • Plate Supply Voltage

    160 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 (Screen-Grid) Supply Voltage

    100 V

    Published in approved 12DT5 target entry; Section1

  • Cathode-Bias Resistor

    560 Ω

    Published in approved 12DT5 target entry; Section1

  • Plate Resistance (Approx.)

    0.15 MΩ

    Published in approved 12DT5 target entry; Section1

  • Transconductance, Grid No.l to Plate

    1350 µS

    Published in approved 12DT5 target entry; Section1

  • Grid-No.2 Current

    1.8 mA

    Published in approved 12DT5 target entry; Section1

  • Grid-No.l Voltage (Approx.) for plate current of 10 tiA

    -5.2 V

    Published in approved 12DT5 target entry; Section1

  • Grid-No.3 Voltage (Approx.) for plate current of 10 fiA

    -4.2 V

    Published in approved 12DT5 target entry; Section1

Capacitance

  • Grid No.l to Plate

    0.02 pF

    Published in approved 12DT5 target entry; Section1

  • Internal Shield

    5.8 pF

    Published in approved 12DT5 target entry; Section1

  • Grid No.3 to Plate

    1.7 pF

    Published in approved 12DT5 target entry; Section1

  • Grid No.l to Grid No.3

    0.1 pF

    Published in approved 12DT5 target entry; Section1

  • Internal Shield

    6.1 pF

    Published in approved 12DT5 target entry; Section1