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

3CV30000A3

Very-high-power directly heated triode for industrial and transmitting RF service, using an exceptionally heavy filament.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 172 A

Description

The Eimac 3CV30000A3 is a vapor-cooled ceramic-metal high-power triode for industrial RF oscillators, RF power and linear amplifiers, plate-modulated amplifiers, and grounded-grid FM amplifier 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
6.3 V
Nominal heater current
172 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
10000 V
Max plate dissipation
30000 W
Max grid dissipation
500 W

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 3CV30,000A3 is a vapor-cooled, ceramic-metal power triode

    3 a

    | The EIMAC 3CV30,000A3 is a vapor-cooled, ceramic-metal power triode

  • Voltage

    6.3 volts

    GeneralCharacteristics | Voltage - - - - - - - 6.3 volts

  • Current

    152 amperes

    GeneralCharacteristics | Current - - - - - - - 152 172 amperes

  • Amplification Factor

    20

    GeneralCharacteristics | Amplification Factor - - - - - 20

  • Grid-Filament

    48 pF

    GeneralCharacteristics | Grid-Filament - - - - - 48 58 pF

  • Plate-Filament

    1.2 pF

    GeneralCharacteristics | Plate-Filament - - - - - 1.2 1.5 pF

  • Grid-Plate

    30 pF

    GeneralCharacteristics | Grid-Plate - - - - - - 30 38 pF

Other

  • Anode Flange T e T S T T S 200°C

    200 °C

    | Anode Flange T e T S T T S 200°C

  • Ceramic-to-metal Seals T L T T S 250°C

    250 °C

    | Ceramic-to-metal Seals T L T T S 250°C

  • Height

    875 inches

    | Height - - - - - - - - - - - - < - - -« - 875 inches

  • Diameter . T T T S 7.5 inches

    7.5 inches

    | Diameter . T T T S 7.5 inches

  • Net Weight

    18 pounds

    | Net Weight - - - - - - <« - <« - - <+ - - - - - 18 pounds

  • RF lNDl"'STRIAI' OSCILLATOR DC Plate Voltage

    7000 volts

    TYPICAL OPERATION | RF lNDl"'STRIAI' OSCILLATOR DC Plate Voltage - - - - 7000 10,000 volts

  • DC Grid Voitage

    600 volts

    TYPICAL OPERATION | DC Grid Voitage - - - —600 —800 volts

  • DC PLATE VOLTAGE

    10000 VOLTS

    MaximumRatings | DC PLATE VOLTAGE - - - - - 10,000 VOLTS Peak Positive Grid Voltage - - 440 360 volts

  • DCPLATECURRENT

    6 AMPS

    MaximumRatings | DCPLATECURRENT - - - - - 6.0 AMPS Driving Power - - - - - 660 365 watts

  • PLATE INPUT POWER

    60 KW

    MaximumRatings | PLATE INPUT POWER - - - - - 60 KW Plate Output Power - - - 30 42 kW

  • PLATE DISSIPATION

    30 KW

    MaximumRatings | PLATE DISSIPATION - - - - - 30 KW Approximate Load Impedance - 600 750 ohms

  • (Revised 3-1-67) © 1967 Varian Printed in U.S.A

    3 A

    MaximumRatings | (Revised 3-1-67) © 1967 Varian Printed in U.S.A.

  • Class-C DC Plate Voltage 5000 7000 volts

    5000 volts

    TYPICAL OPERATION | Class-C DC Plate Voltage 5000 7000 volts

  • DC PLATE VOLTAGE

    7000 VOLTS

    TYPICAL OPERATION | DC PLATE VOLTAGE - - - - 7000 VOLTS BC Grid C 00 600 ops

  • DC PLATE CURRENT

    50 AMPS

    TYPICAL OPERATION | DC PLATE CURRENT - - - - 50 AMPS - Orid Current - - - - 0 m

  • PLATE DISSIPATION

    20 KW

    TYPICAL OPERATION | PLATE DISSIPATION - _ . R 20 KW Driving Power - - - - - 600 750 watts

  • GRID DISSIPATION

    500 WATTS

    TYPICAL OPERATION | GRID DISSIPATION - - - - 500 WATTS Plate Output Power - - - 17.8 27.5 kW

  • LINEAR AMPLIFIER DC Plate Voltage

    7000 volts

    RADIO-FREQUENCY TYPICAL OPERATION | LINEAR AMPLIFIER DC Plate Voltage - - - - 7000 10,000 volts

  • Class-AB DC Grid Voltage*

    250 volts

    RADIO-FREQUENCY TYPICAL OPERATION | Class-AB DC Grid Voltage* - - - - —250 —400 volts

  • 2 Zero-Sig Plate Current

    2 amps

    RADIO-FREQUENCY TYPICAL OPERATION | 2 Zero-Sig Plate Current - - - 2.0 2.0 amps

  • ax-Sig ri vrrent

    375 mA

    MaximumRatings | ax-Sig ri vrrent - - 375 333 mA

  • DC PLATE VOLTAGE

    -10000 VOLTS

    MaximumRatings | DC PLATE VOLTAGE - - - - -10,000 VOLTS Peak RF Grid Voltage - - - 530 700 volts

  • DC PLATE CURRENT

    6 AMPS

    MaximumRatings | DC PLATE CURRENT - - - - - 6.0 AMPS Driving Power - - - - - 200 240 watts

  • PLATE DISSIPATION

    30 KW

    MaximumRatings | PLATE DISSIPATION - - - - - 30 KW Plate Output Power - - - 26.4 41 kw

  • GRID DISSIPATION

    500 WATTS

    MaximumRatings | GRID DISSIPATION - - - - - 500 WATTS *Adjust to give specified zero-signal dc plate current.

  • 3CV30,000A3 is 6.3 volts. Filament voltage, as amplifier, input is reduced to 7000 volts at 5.0

    3 volts

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | 3CV30,000A3 is 6.3 volts. Filament voltage, as amplifier, input is reduced to 7000 volts at 5.0

  • 6.3 volts plus or minus five percent for maxi- for short periods during tuning without exceed

    6.3 volts

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | 6.3 volts plus or minus five percent for maxi- for short periods during tuning without exceed-

  • more than 0.4 to 0.6 amperes grid current to wide variations in loading

    0.4 amperes

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | more than 0.4 to 0.6 amperes grid current to wide variations in loading.

  • rating is 500 watts. this tube under conditions widely different from

    500 watts

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | rating is 500 watts. this tube under conditions widely different from

  • power rating is 60 kilowatts at 10,000 volts and keting Department, EIMAC Division of Varian,

    60 volts

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | power rating is 60 kilowatts at 10,000 volts and keting Department, EIMAC Division of Varian,

  • 6.0 amperes dc. This rating applies for Class C 301 Industrial Way, San Carlos, California, for

    6 amperes

    Note: ““TYPICAL OPERATION’' data are obtained by calculation from published characteristic curves. No allowance for circuit losses has been made. | 6.0 amperes dc. This rating applies for Class C 301 Industrial Way, San Carlos, California, for

  • 900 boiler. It is very important that fins. This level is mark ed on the boile r. A reco m

    900 A

    | 900 boiler. It is very important that fins. This level is mark ed on the boile r. A reco m-

  • ge of the tube mak es a vapo r-ti ght seal 02 Cont rol

    2 a

    | ge of the tube mak es a vapo r-ti ght seal 02 Cont rol

  • against the rubber “0” ring and boile Box to sense water level and a smal l reser voir to

    0 a

    | against the rubber “0” ring and boile Box to sense water level and a smal l reser voir to

  • the 3CV3 0,00 0A3. Fila ment em wate r level , a swit ch is

    3 a

    | the 3CV3 0,00 0A3. Fila ment em wate r level , a swit ch is

  • valve . A seco nd swit ch in the CB-2 02

    2 A

    | valve . A seco nd swit ch in the CB-2 02

  • oxim atel y 100° C. In a

    100 a

    | oxim atel y 100° C. In a

  • A 7750

    7750 A

    | A 7750

  • v | /88

    88 v

    | v | /88