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Power - Triode (over 1000V 100W) ·Triode

3CW5000H3

Water-cooled ceramic-metal industrial power triode for high-power RF generation, amplification, or modulation. Its manufacturer ratings emphasize continuous transmitting duty with high plate dissipation and substantial power handling.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
7.5 V / 53 A

Description

The EIMAC 3CW5000H3 is a water-cooled ceramic/metal industrial medium-mu power triode for rf heating service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
7.5 V
Nominal heater current
53 A
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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Amplification factor
20
Max plate voltage
6000 V
Max plate dissipation
5000 W
Max grid dissipation
150 W
Max cathode current
2.5 A

Single triode section; promoted values mapped from printed General Characteristics and Maximum Ratings headings.

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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • The EIMAC 3CW5000H3 is a water-cooled, ceramic-metal power

    3 a

    | The EIMAC 3CW5000H3 is a water-cooled, ceramic-metal power

  • reserve emission is available from its 375 watt filament. The grid struc

    375 watt

    | reserve emission is available from its 375 watt filament. The grid struc-

  • ture is rated at 150 watts making this tube an excellent choice for severe

    150 watts

    | ture is rated at 150 watts making this tube an excellent choice for severe

  • Voltage

    7.5 Volts

    GeneralCharacteristics | Voltage - - - - - 7.5 Volts

  • Current

    48 amps

    GeneralCharacteristics | Current - - - - - 48 53 amps

  • Amplification Factor

    20

    GeneralCharacteristics | Amplification Factor - - - - 20

  • Plate-Filament

    0.6 uuf

    GeneralCharacteristics | Plate-Filament - - - - 0.60 120 uuf

Other

  • Maximum Operating Temperatures

    250 °C

    | Maximum Operating Temperatures - - - - - - - - - - - - . 250°C

  • (Effective 4-1-66) © 1966 Varian Printed in U.S.A

    4 A

    | (Effective 4-1-66) © 1966 Varian Printed in U.S.A.

  • Class-C (Filtered DC Power Supply) DC Plate Voltage

    4000 volts

    RF INDUSTRIAL OSCILLATOR TYPICAL OPERATION* | Class-C (Filtered DC Power Supply) DC Plate Voltage - 4000 6000 volts

  • DC Plate Current

    2.5 amps

    RF INDUSTRIAL OSCILLATOR TYPICAL OPERATION* | DC Plate Current - 2.5 2.08 amps

  • DC Grid Voltage

    300 volts

    RF INDUSTRIAL OSCILLATOR TYPICAL OPERATION* | DC Grid Voltage - —300 —500 volts

  • DC Grid Current

    245 amps

    MaximumRatings | DC Grid Current - - .245 .180 amps

  • DC PLATE VOLTAGE

    6000 volts

    MaximumRatings | DC PLATE VOLTAGE - - - - - 6000 volts Peak Positive Grid Voltage 280 265 volts

  • DC PLATE CURRENT

    2.5 amps

    MaximumRatings | DC PLATE CURRENT - - - - - 2.5 amps Driving Power - - 142 136 watts

  • DC GRID VOLTAGE

    1000 volts

    MaximumRatings | DC GRID VOLTAGE - - - - - —1000 volts Plate Input Power - - 10,000 12,500 kW

  • Plate Dissipation

    2500 kW

    MaximumRatings | Plate Dissipation - - 2,500 2,500 kW

  • DC GRID CURRENT

    0.4 amp

    MaximumRatings | DC GRID CURRENT - - - - - 0.4 amp Plate Output Power - 7 500 10,000 kW

  • PLATE INPUT POWER

    12.5 kW

    MaximumRatings | PLATE INPUT POWER - - - 12.5 kW Approximate Load Impedance 910 1,625 ohms

  • PLATE DISSIPATION (NOMINAL)

    5 kw

    MaximumRatings | PLATE DISSIPATION (NOMINAL) - - 5 kw *Loaded Conditions

  • is 7.5 volts. Filament voltage, as measured at either base up or down. A grid contact flange is

    7.5 volts

    | is 7.5 volts. Filament voltage, as measured at either base up or down. A grid contact flange is

  • the tube, must be maintained at 7.5 volts plus provided for bolting to a strap or a grid deck

    7.5 volts

    | the tube, must be maintained at 7.5 volts plus provided for bolting to a strap or a grid deck.

  • The grid current rating is 0.4 ampere dc. This Anode cooling is accomplished by circulating

    0.4 ampere

    | The grid current rating is 0.4 ampere dc. This Anode cooling is accomplished by circulating

  • operate with more than 0.275 amperes grid cur- let water temperature must not exceed 70°C nor

    0.275 amperes

    | operate with more than 0.275 amperes grid cur- let water temperature must not exceed 70°C nor

  • rent to obtain reasonable efficiency. Inindustrial should inlet water pressure exceed 60 psi. This

    60

    | rent to obtain reasonable efficiency. Inindustrial should inlet water pressure exceed 60 psi. This

  • heating service with varying loads, grid current table is based upon 15°C temperature rise inlet

    15 °C

    | heating service with varying loads, grid current table is based upon 15°C temperature rise inlet

  • rating is 150 watts. MINIMUM WATER-COOLING REQUIREMENT

    150 watts

    | rating is 150 watts. MINIMUM WATER-COOLING REQUIREMENT

  • Maximum plate voltage rating of 6000 volts Dissipation Flow Drop

    6000 volts

    | Maximum plate voltage rating of 6000 volts Dissipation Flow Drop

  • and maximum plate current of 2.5 amperes dc (kw) (9pm) (psi)

    2.5 amperes

    | and maximum plate current of 2.5 amperes dc (kw) (9pm) (psi)

  • wide variations in loading. contact ring by a 1% I.D. air duct arranged at

    1 a

    | wide variations in loading. contact ring by a 1% I.D. air duct arranged at

  • Spark gaps from plate to ground should be a 45° angle with the center line of the tube will

    45 a

    | Spark gaps from plate to ground should be a 45° angle with the center line of the tube will

  • The 3CW5000H3 is usable to 110 MHz. At write to Power Grid Division, EIMAC, Division

    3 MHz

    | The 3CW5000H3 is usable to 110 MHz. At write to Power Grid Division, EIMAC, Division

  • 4000 volts in Class C service. ifornia for information and recommendations

    4000 volts

    | 4000 volts in Class C service. ifornia for information and recommendations.

Data set 02

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • The EIMAC [1]

    3 W

    The EIMAC 3CW5000H3 is a water-cooled, ceramic-metal power

  • The EIMAC [2]

    0 W

    The EIMAC 3CW5000H3 is a water-cooled, ceramic-metal power

  • services. Its water-cooled anode is conservatively rated at

    5

    services. Its water-cooled anode is conservatively rated at 5 kilowatts of

  • Input of [1]

    12.5

    Input of 12.5 kilowatts is permissible up to 75 megahertz. Plentiful

  • Input of [2]

    75

    Input of 12.5 kilowatts is permissible up to 75 megahertz. Plentiful

  • reserve emission is available from its

    375

    reserve emission is available from its 375 watt filament. The grid stmc-

  • EiE Voltage

    7.5 V

    EiE Voltage---. 7.5 Volts

  • Current [1]

    48 A

    Current---. 48 53 amps

  • Current [2]

    53 A

    Current---. 48 53 amps

  • Grid-Filament [1]

    -29.2

    Grid-Filament----29.2 40.2

  • Grid-Filament [2]

    40.2

    Grid-Filament----29.2 40.2

  • Plate-Filament [1]

    -0.6

    Plate-Filament----0.60 1.20

  • Plate-Filament [2]

    1.2

    Plate-Filament----0.60 1.20

  • Grid-Plate [1]

    -17.8

    Grid-Plate-----17.8 24.2

  • Grid-Plate [2]

    24.2

    Grid-Plate-----17.8 24.2

  • Frequency for Maximum Ratings

    75

    Frequency for Maximum Ratings - 75

  • Maximum operating Temperatures

    250

    Maximum operating Temperatures ------------- 250°C

  • Class-C (Filtered DC Power Supply) DC plate Voltage [1]

    4000 V

    Class-C (Filtered DC Power Supply) DC plate Voltage 4000 6000 volts

  • Class-C (Filtered DC Power Supply) DC plate Voltage [2]

    6000 V

    Class-C (Filtered DC Power Supply) DC plate Voltage 4000 6000 volts

  • DC Grid Voltage _ [1]

    3265 V

    DC Grid Voltage _3265 _2j88 ;T,?sS

  • DC Grid Voltage _ [2]

    2 V

    DC Grid Voltage _3265 _2j88 ;T,?sS

  • DC Grid Voltage _ [3]

    8 V

    DC Grid Voltage _3265 _2j88 ;T,?sS

  • DC Grid Current • [1]

    288 A

    DC Grid Current •288 .288::Pss

  • DC Grid Current • [2]

    288 A

    DC Grid Current •288 .288::Pss

  • DC PLATE VOLTAGE

    6000 V

    DC PLATE VOLTAGE - - - 6000 volts Peak Positive Grid

  • DC PLATE CURRENT [1]

    2.5 A

    DC PLATE CURRENT - - - 2.5 amps Driving Power - 142 136 watts

  • DC PLATE CURRENT [2]

    142 A

    DC PLATE CURRENT - - - 2.5 amps Driving Power - 142 136 watts

  • DC PLATE CURRENT [3]

    136 A

    DC PLATE CURRENT - - - 2.5 amps Driving Power - 142 136 watts

  • Published value [1]

    -1000 kW

    -1000 volts Plate Input Power 10,00012,500 kw

  • Published value [2]

    1000012500 kW

    -1000 volts Plate Input Power 10,00012,500 kw

  • PlateDissipation [1]

    2500 kW

    PlateDissipation - - - 2,500 2,500kw

  • PlateDissipation [2]

    2500 kW

    PlateDissipation - - - 2,500 2,500kw

  • DC GRID CURRENT [1]

    400 mA

    DC GRID CURRENT - - - 0.4 amp Plateoutput power - - 7,50010,000 kw

  • DC GRID CURRENT [2]

    750010000 A

    DC GRID CURRENT - - - 0.4 amp Plateoutput power - - 7,50010,000 kw

  • PLATE INPUT POWER [1]

    12.5 kW

    PLATE INPUT POWER - - 12.5 kw Approximate Load Impedance 910 1,625 ohms

  • PLATE INPUT POWER [2]

    910 kW

    PLATE INPUT POWER - - 12.5 kw Approximate Load Impedance 910 1,625 ohms

  • PLATE INPUT POWER [3]

    1625 kW

    PLATE INPUT POWER - - 12.5 kw Approximate Load Impedance 910 1,625 ohms

  • PLATE DISSIPATION (NOMINAL)

    5 kW

    PLATE DISSIPATION (NOMINAL) 5kw

  • The rated filament voltage for the [1]

    3 V

    The rated filament voltage for the 3CW5000H3 The 3CW5000H3 must be mounted vertically,

Data set 03

1975 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Amplification factor

    20

  • Heater/filament voltage

    7.5 V

  • Heater/filament current

    50.5 A

Other

  • Maximum plate voltage

    6000 V

  • Maximum plate dissipation

    5000 W

  • Maximum grid dissipation

    150 W

  • Maximum cathode/plate current

    2.5 A

  • Frequency for maximum ratings

    75 MHz

  • Plate input power maximum

    12500 W

    IndustrialRF

  • Typical plate output power

    10000 W

    ClassC

Capacitance

  • Input/grid-filament capacitance

    29.2 to 40.2 pF

  • Output/plate-filament capacitance

    0.6 to 1.2 pF

  • Feedback/grid-plate capacitance

    17.8 to 24.2 pF

Construction

  • Cooling

    Water and forced air

Data set 04

1976 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Amplification factor

    20

  • Heater/filament voltage

    7.5 V

  • Heater/filament current

    50.5 A

Other

  • Maximum plate voltage

    6000 V

  • Maximum plate dissipation

    5000 W

  • Maximum grid dissipation

    150 W

  • Maximum cathode/plate current

    2.5 A

  • Frequency for maximum ratings

    75 MHz

  • Plate input power maximum

    12500 W

    IndustrialRF

  • Typical plate output power

    10000 W

    ClassC

Capacitance

  • Input/grid-filament capacitance

    29.2 to 40.2 pF

  • Output/plate-filament capacitance

    0.6 to 1.2 pF

  • Feedback/grid-plate capacitance

    17.8 to 24.2 pF

Construction

  • Cooling

    Water and forced air