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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

4CX3000A

Forced-air-cooled 3 kW transmitting tetrode for high-power linear RF and professional transmitter service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
9 V / 41.5 A

Description

The EIMAC 8169/4CX3000A is a ceramic and metal power tetrode designed to be used as a Class-AB; linear ampli- of low intermodulation distortion make it especially suitable This tube is unique in that a production test is included to insure minimum distortion products. The 8169/4CX3000A must produce a minimum of 5300 watts in Class AB; 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
9 V
Nominal heater current
41.5 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

Tetrode

X-ray radiationInterelectrode capacitances
Amplification factor
5.5
Max plate voltage
7000 V
Max screen voltage
1000 V
Max plate dissipation
3000 W
Max screen dissipation
175 W
Max grid dissipation
50 W

Promoted maximum ratings/characteristics populated from published headings; service-specific values retained in parameters.

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

Tetrode

Other

  • Voltage

    9 V

    Voltage - - - - 9.0 volts

  • Current [1]

    39.5 A

    Current - - - - 39.5 43.5 amps

  • Current [2]

    43.5 A

    Current - - - - 39.5 43.5 amps

  • Amplification Factor (Grid Screen)

    5.5

    Amplification Factor (Grid Screen) 5.5

  • Frequency For Maximum Ratings

    150 MHz

    Frequency For Maximum Ratings 150 MHz

  • Output [1]

    10.5 pF

    Output - - - - 10.5 14.5 pF

  • Output [2]

    14.5 pF

    Output - - - - 10.5 14.5 pF

  • Output - = - = « [1]

    4 pF

    Output - = - = « 4« - « < « - - - - 105 145 pF

  • Output - = - = « [2]

    105 pF

    Output - = - = « 4« - « < « - - - - 105 145 pF

  • Output - = - = « [3]

    145 pF

    Output - = - = « 4« - « < « - - - - 105 145 pF

  • OR OSCILLATOR DC Plate Voltage [1]

    5000 V

    OR OSCILLATOR DC Plate Voltage - - - - - 5000 7000 volts

  • OR OSCILLATOR DC Plate Voltage [2]

    7000 V

    OR OSCILLATOR DC Plate Voltage - - - - - 5000 7000 volts

  • Class-C Telegraphy or FM Telephony DC Screen Voltage [1]

    500 V

    Class-C Telegraphy or FM Telephony DC Screen Voltage - - - - - 500 500 volts

  • Class-C Telegraphy or FM Telephony DC Screen Voltage [2]

    500 V

    Class-C Telegraphy or FM Telephony DC Screen Voltage - - - - - 500 500 volts

  • (Key-down conditions) DC Grid Voltage [1]

    280

    (Key-down conditions) DC Grid Voltage - - - - - 280 —300volts

  • (Key-down conditions) DC Grid Voltage [2]

    -300

    (Key-down conditions) DC Grid Voltage - - - - - 280 —300volts

  • DC Plate Current [1]

    1.9 A

    DC Plate Current - - - - - 1.9 1.9 amps

  • DC Plate Current [2]

    1.9 A

    DC Plate Current - - - - - 1.9 1.9 amps

  • MAXIMUM RATINGS DC Screen Current [1]

    250 mA

    MAXIMUM RATINGS DC Screen Current - - - - - 250 230 mA

  • MAXIMUM RATINGS DC Screen Current [2]

    230 mA

    MAXIMUM RATINGS DC Screen Current - - - - - 250 230 mA

  • DC PéégENV\C/)gIL/%Eé [1]

    7000 mA

    DC PéégENV\C/)gIL/%Eé - - - - 7000 V8LTS DC Grid Current - - - - - . 100 100 mA

  • DC PéégENV\C/)gIL/%Eé [2]

    100 mA

    DC PéégENV\C/)gIL/%Eé - - - - 7000 V8LTS DC Grid Current - - - - - . 100 100 mA

  • DC PéégENV\C/)gIL/%Eé [3]

    100 mA

    DC PéégENV\C/)gIL/%Eé - - - - 7000 V8LTS DC Grid Current - - - - - . 100 100 mA

  • DC PLATE CURRENT [1]

    2 V

    DC PLATE CURRENT - - - - 2.0 AMPS iy RFPG"d Voltage 322 43? volts

  • DC PLATE CURRENT [2]

    322 V

    DC PLATE CURRENT - - - - 2.0 AMPS iy RFPG"d Voltage 322 43? volts

  • DC PLATE CURRENT [3]

    43 V

    DC PLATE CURRENT - - - - 2.0 AMPS iy RFPG"d Voltage 322 43? volts

  • PLATE DISSIPATION

    3000 W

    PLATE DISSIPATION - - - - 3000 WATTS riving Power - - - - - - watts

  • SCREEN DISSIPATION [1]

    175 W

    SCREEN DISSIPATION - - - 175 WATTS Plate Dissipation - - - - - 1900 2300 watts

  • SCREEN DISSIPATION [2]

    1900 W

    SCREEN DISSIPATION - - - 175 WATTS Plate Dissipation - - - - - 1900 2300 watts

  • SCREEN DISSIPATION [3]

    2300 W

    SCREEN DISSIPATION - - - 175 WATTS Plate Dissipation - - - - - 1900 2300 watts

  • GRID DISSIPATION [1]

    50 W

    GRID DISSIPATION - - - . 50 WATTS Plate Output Power - - - - - 7600 11,000 watts

  • GRID DISSIPATION [2]

    7600 W

    GRID DISSIPATION - - - . 50 WATTS Plate Output Power - - - - - 7600 11,000 watts

  • GRID DISSIPATION [3]

    11000 W

    GRID DISSIPATION - - - . 50 WATTS Plate Output Power - - - - - 7600 11,000 watts

  • POWER AMPLIFIER DC Plate Voltage B

    5000 V

    POWER AMPLIFIER DC Plate Voltage B 5000 volts

  • DC Grid Voltage B

    -375 V

    DC Grid Voltage B —375 volts

  • DC SCREEN VOLTAGE [1]

    600 V

    DC SCREEN VOLTAGE - - - - 600 VOLTS DC Screen Current - - - .. - - 170 mA

  • DC SCREEN VOLTAGE [2]

    170 V

    DC SCREEN VOLTAGE - - - - 600 VOLTS DC Screen Current - - - .. - - 170 mA

  • PLATE DISSIPATION* [1]

    2000 V

    PLATE DISSIPATION* - . - - 2000 WATTS Peak RF Grid Voltage - e e e - . 455 volts

  • PLATE DISSIPATION* [2]

    455 V

    PLATE DISSIPATION* - . - - 2000 WATTS Peak RF Grid Voltage - e e e - . 455 volts

  • GRID DISSIPATION [1]

    50 W

    GRID DISSIPATION - - - - 50 WATTS Plate Dissipation - - - - - - - 1250 watts

  • GRID DISSIPATION [2]

    1250 W

    GRID DISSIPATION - - - - 50 WATTS Plate Dissipation - - - - - - - 1250 watts

  • *Corresponds to [1]

    3000 W

    *Corresponds to 3000 watts at 100 percent sine-wave modulation. Plate Output Power - - - - - - - 5750 watts

  • *Corresponds to [2]

    100 W

    *Corresponds to 3000 watts at 100 percent sine-wave modulation. Plate Output Power - - - - - - - 5750 watts

  • *Corresponds to [3]

    5750 W

    *Corresponds to 3000 watts at 100 percent sine-wave modulation. Plate Output Power - - - - - - - 5750 watts

  • OR MODULATOR DC Plate Voltage [1]

    5000 V

    OR MODULATOR DC Plate Voltage - - - - - 5000 6000 volts

  • OR MODULATOR DC Plate Voltage [2]

    6000 V

    OR MODULATOR DC Plate Voltage - - - - - 5000 6000 volts

  • DC Grid Voltage* - - - - - = [1]

    180 V

    DC Grid Voltage* - - - - - =180 —200 volts

  • DC Grid Voltage* - - - - - = [2]

    -200 V

    DC Grid Voltage* - - - - - =180 —200 volts

  • MAXMUM RATINGS (Per Tube) Max-Signal Plate Current - -~ [1]

    3.6 A

    MAXMUM RATINGS (Per Tube) Max-Signal Plate Current - -~ - - 3.6 3.1 amps

  • MAXMUM RATINGS (Per Tube) Max-Signal Plate Current - -~ [2]

    3.1 A

    MAXMUM RATINGS (Per Tube) Max-Signal Plate Current - -~ - - 3.6 3.1 amps

  • DC PLATE VOLTAGE [1]

    6000 V

    DC PLATE VOLTAGE - - - - 6000 VOLTS Zero-Signal Plate Current - - - 1.0 0.7 amp

  • DC PLATE VOLTAGE [2]

    1 V

    DC PLATE VOLTAGE - - - - 6000 VOLTS Zero-Signal Plate Current - - - 1.0 0.7 amp

  • DC PLATE VOLTAGE [3]

    0.7 V

    DC PLATE VOLTAGE - - - - 6000 VOLTS Zero-Signal Plate Current - - - 1.0 0.7 amp

  • DC SCREEN VOLTAGE [1]

    1000 V

    DC SCREEN VOLTAGE - - - . 1000 VOLTS Max-Signal Screen Current** - - - 170 120 mA

  • DC SCREEN VOLTAGE [2]

    170 V

    DC SCREEN VOLTAGE - - - . 1000 VOLTS Max-Signal Screen Current** - - - 170 120 mA

  • DC SCREEN VOLTAGE [3]

    120 V

    DC SCREEN VOLTAGE - - - . 1000 VOLTS Max-Signal Screen Current** - - - 170 120 mA

  • DC PLATE CURRENT [1]

    2 A

    DC PLATE CURRENT - - - - 2.0 AMPS Zero-Signal Screen Current - - - 0 0 mA

  • DC PLATE CURRENT [2]

    0 mA

    DC PLATE CURRENT - - - - 2.0 AMPS Zero-Signal Screen Current - - - 0 0 mA

  • DC PLATE CURRENT [3]

    0 mA

    DC PLATE CURRENT - - - - 2.0 AMPS Zero-Signal Screen Current - - - 0 0 mA

  • PLATE DISSIPATION [1]

    3500 V

    PLATE DISSIPATION - - - - 3500 WATTS Peak AF Driving Voltage* - - - 155 175 volts

  • PLATE DISSIPATION [2]

    155 V

    PLATE DISSIPATION - - - - 3500 WATTS Peak AF Driving Voltage* - - - 155 175 volts

  • PLATE DISSIPATION [3]

    175 V

    PLATE DISSIPATION - - - - 3500 WATTS Peak AF Driving Voltage* - - - 155 175 volts

  • SCREEN DISSIPATION [1]

    175 W

    SCREEN DISSIPATION - - - - 175 WATTS Driving Power - - - - - - 0 0 watts

  • SCREEN DISSIPATION [2]

    0 W

    SCREEN DISSIPATION - - - - 175 WATTS Driving Power - - - - - - 0 0 watts

  • SCREEN DISSIPATION [3]

    0 W

    SCREEN DISSIPATION - - - - 175 WATTS Driving Power - - - - - - 0 0 watts

  • GRID DISSIPATION N [1]

    50 W

    GRID DISSIPATION N 50 WATTS Load Resistance, Plate-to-Plate - - - 3000 4160 ohms

  • GRID DISSIPATION N [2]

    3000 W

    GRID DISSIPATION N 50 WATTS Load Resistance, Plate-to-Plate - - - 3000 4160 ohms

  • GRID DISSIPATION N [3]

    4160 W

    GRID DISSIPATION N 50 WATTS Load Resistance, Plate-to-Plate - - - 3000 4160 ohms

  • *Per tube Max-Signal Plate Dissipation* [1]

    3300 W

    *Per tube Max-Signal Plate Dissipation* - - - 3300 3100 watts

  • *Per tube Max-Signal Plate Dissipation* [2]

    3100 W

    *Per tube Max-Signal Plate Dissipation* - - - 3300 3100 watts

  • **Approximate values Max-Signal Plate Output Power [1]

    11400 W

    **Approximate values Max-Signal Plate Output Power - - 11,400 12,400 watts

  • **Approximate values Max-Signal Plate Output Power [2]

    12400 W

    **Approximate values Max-Signal Plate Output Power - - 11,400 12,400 watts

  • Class-AB DC Plate Voltage

    5000 V

    Class-AB DC Plate Voltage - - - 5000 volts

  • DC Screen Voltage

    850 V

    DC Screen Voltage - - - 850 volts

  • MAXIMUM RATINGS DC Grid Voltage*

    180 V

    MAXIMUM RATINGS DC Grid Voltage* - - 180 volts

  • Zero-Signal DC Plate Current

    500 mA

    Zero-Signal DC Plate Current - 0.5 amp

  • DC PLATE VOLTAGE [1]

    6000 V

    DC PLATE VOLTAGE - - - - 6000 VOLTS Single-Tone DC Plate Current - 1.65 amps

  • DC PLATE VOLTAGE [2]

    1.65 V

    DC PLATE VOLTAGE - - - - 6000 VOLTS Single-Tone DC Plate Current - 1.65 amps

  • DC SCREEN VOLTAGE [1]

    1000 V

    DC SCREEN VOLTAGE - - - - 1000 VOLTS Single-Tone DC Screen Current 25 mA

  • DC SCREEN VOLTAGE [2]

    25 V

    DC SCREEN VOLTAGE - - - - 1000 VOLTS Single-Tone DC Screen Current 25 mA

  • DC PLATE CURRENT [1]

    2 A

    DC PLATE CURRENT - - - - 2.0 AMPS Two-Tone DC Plate Current - 1.10 amps

  • DC PLATE CURRENT [2]

    1.1 A

    DC PLATE CURRENT - - - - 2.0 AMPS Two-Tone DC Plate Current - 1.10 amps

  • PLATE DISSIPATION [1]

    3500 mA

    PLATE DISSIPATION - - - - 3500 WATTS Two-Tone DC Screen Current - 20 mA

  • PLATE DISSIPATION [2]

    20 mA

    PLATE DISSIPATION - - - - 3500 WATTS Two-Tone DC Screen Current - 20 mA

  • SCREEN DISSIPATION [1]

    175 V

    SCREEN DISSIPATION - - - - 175 WATTS Peak RF Grid Voltage - - 155 volts

  • SCREEN DISSIPATION [2]

    155 V

    SCREEN DISSIPATION - - - - 175 WATTS Peak RF Grid Voltage - - 155 volts

  • GRID DISSIPATION [1]

    50 W

    GRID DISSIPATION - - - 50 WATTS Driving Power - - - 0 watts

  • GRID DISSIPATION [2]

    0 W

    GRID DISSIPATION - - - 50 WATTS Driving Power - - - 0 watts

  • *Approximate values Peak Envelope Useful Output Power

    5300 W

    *Approximate values Peak Envelope Useful Output Power 5300 watts

  • Resonant Load Impedance

    1700 ohm

    Resonant Load Impedance - 1700 ohms

  • as indicated with respect to IM distortion products and power output, (without negative feedback) —

    -32

    as indicated with respect to IM distortion products and power output, (without negative feedback) —-32db

  • Mounting — The [1]

    4

    Mounting — The 4CX3000A must be operated Filament Operation—The rated filament voltage

  • Mounting — The [2]

    0

    Mounting — The 4CX3000A must be operated Filament Operation—The rated filament voltage

  • with its axis vertical. The base of the tube may for the [1]

    4 V

    with its axis vertical. The base of the tube may for the 4CX3000A is 9.0 volts. Filament voltage,

  • with its axis vertical. The base of the tube may for the [2]

    0 V

    with its axis vertical. The base of the tube may for the 4CX3000A is 9.0 volts. Filament voltage,

  • with its axis vertical. The base of the tube may for the [3]

    9 V

    with its axis vertical. The base of the tube may for the 4CX3000A is 9.0 volts. Filament voltage,

  • for the external surfaces of the [1]

    4

    for the external surfaces of the 4CX3000A is Control Grid Operation — The rated dissipation

  • for the external surfaces of the [2]

    0

    for the external surfaces of the 4CX3000A is Control Grid Operation — The rated dissipation

  • Published value [1]

    1500

    1500 36.5 0.3 53 0.4 power, and carrier screen voltage.

  • Published value [2]

    36.5

    1500 36.5 0.3 53 0.4 power, and carrier screen voltage.