Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Power - Beam (NOT sweep) ·BeamPower

4604

Quick-heating beam-power transmitting tube designed for mobile and emergency-communications RF amplifier and oscillator service, with useful output extending well into VHF.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
8
Nominal heater
6.3 V / 650 mA

Description

Quick-heating beam power tube for mobile and emergency-communications RF power-amplifier and oscillator service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
650 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

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.006 S
Amplification factor
4
Max plate voltage
750 V
Max screen voltage
250 V
Max plate dissipation
25 W
Max cathode current
150 mA

Published maximum ratings/general electrical characteristics promoted directly; pulse, RF, capacitance, cooling, and service-specific values retained in TUBE_SECTION_PARAMETER.

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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    650 mA

    Nominal

  • Maximum Plate Voltage

    750 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    25 W

  • Maximum Cathode Current

    150 mA

  • MaximumFrequencyFullInput

    60 MHz

    ICAS

  • MaximumFrequencyReducedInput

    175 MHz

    ICAS

Characteristic

  • Transconductance

    6000 µS

    Typical

  • Amplification Factor

    4

    Typical

  • Heating Time

    1 s

    Quick-heating filament

  • RFPowerOutput

    30 W

    Typical amplifier operation at 175 MHz

Data set 02

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum plate voltage

    750 V

    PromotedValue

  • Maximum screen-grid voltage

    250 V

    PromotedValue

  • Maximum plate dissipation

    25 W

    PromotedValue

  • Maximum cathode/plate current

    150 mA

    PromotedValue

  • Grid No.l to plate

    0.24 mA

    Published datasheet value

  • RF POWER AMPLIFIER 6 OSCILLATOR — Class C 7elegraphy~ — published value 1

    6 A

    ClassC

  • RF POWER AMPLIFIER 6 OSCILLATOR — Class C 7elegraphy~ — published value 2

    7 A

    ClassC

  • DC PLATE VOLTAGE

    750 mA

    Published datasheet value

  • DC GRID-No.2 VOLTAGE

    250 mA

    Published datasheet value

  • DC GRID-No.l VOLTAGE

    -150 mA

    Published datasheet value

  • DC PLATE CURRENT

    150 mA

    Published datasheet value

  • DC GRID-No.1 CURRENT

    4 mA

    Published datasheet value

  • PLATE INPUT

    90 mA

    Published datasheet value

  • GRID-No.2 INPUT

    3 mA

    Published datasheet value

  • PLATE DISSIPATION

    25 mA

    Published datasheet value

  • Grid-No.l~ircuit Resistance+

    30 A

    Published datasheet value

Characteristics

  • Transconductance

    6000 uS

    PromotedValue

  • Mu / amplification factor

    4

    PromotedValue

  • Heater/filament voltage

    6.3 V

    Nominal operating value

  • Heater/filament current

    650 mA

    Nominal operating value

  • 90 WATTS CW INPUT (ICAS) UP TO 60 Mc — published value 1

    90 W

    CW; ICAS

  • 90 WATTS CW INPUT (ICAS) UP TO 60 Mc — published value 2

    60 W

    CW; ICAS

  • 60 WATTS CW INPUT (ICAS) AT 175 Mc — published value 1

    60 W

    CW; ICAS

  • 60 WATTS CW INPUT (ICAS) AT 175 Mc — published value 2

    175 W

    CW; ICAS

  • Voltage (AC or DC) — published value 1

    6 V

    Published datasheet value

  • Voltage (AC or DC) — published value 2

    3 V

    Published datasheet value

  • Voltage (AC or DC) — published value 3

    10 V

    Published datasheet value

  • Current at 6.3 volts — published value 1

    6.3 A

    Published datasheet value

  • Current at 6.3 volts — published value 2

    650 mA

    Published datasheet value

  • Heating time

    1

    Published datasheet value

  • Transconductance, for plate volts = 200,'

    200 V

    Published datasheet value

  • grid-No.2 volts = 200, and plate

    200 V

    Published datasheet value

  • plate volts = 200, grid-No.2 volts

    200 V

    Published datasheet value

  • = 200, and plate ma. = 100 — published value 1

    200 mA

    Published datasheet value

  • = 200, and plate ma. = 100 — published value 2

    100 mA

    Published datasheet value

  • = 200, and plate ma. = 100 — published value 3

    4 mA

    Published datasheet value

  • Pin 1 -Filament Tap, — published value 1

    1

    Published datasheet value

  • Pin 1 -Filament Tap, — published value 2

    4

    Published datasheet value

  • Pin 1 -Filament Tap, — published value 3

    1

    Published datasheet value

  • Grid No.3,

    5

    Published datasheet value

  • Shield

    7

    Published datasheet value

  • Pin 3 -Grid No.2

    3

    Published datasheet value

  • DC Plate Voltage

    400 V

    Published datasheet value

  • DC Grid-No.2 Voltage*

    190 V

    Published datasheet value

  • DC Grid-No.l Voltages

    -60 V

    Published datasheet value

  • DC Plate Current

    150 mA

    Published datasheet value

  • DC Grid-No.2 Current

    11 mA

    Published datasheet value

  • DC Grid-No.l Current (Approx )

    2 mA

    Published datasheet value

  • Driving Power (Approx.)

    4.5 W

    Published datasheet value

  • Power Output (Approx )

    30 W

    Published datasheet value

  • the audio-frequency envelope does not exceed 115 per cent of the

    115

    Published datasheet value

  • grid-No.2 resistor Should De s tl only when the 4604 i

    4604

    Published datasheet value

  • Fi lament Current at 6.3 volts ac — published value 1

    6.3 A

    Published datasheet value

  • Fi lament Current at 6.3 volts ac — published value 2

    590 mA

    Published datasheet value

  • Fi lament Current at 6.3 volts ac — published value 3

    710 mA

    Published datasheet value

  • Grid No.1 to plate

    0.24

    Published datasheet value

  • Plate Currents — published value 1

    46 mA

    Published datasheet value

  • Plate Currents — published value 2

    94 mA

    Published datasheet value

  • Grid—No.2 Currents

    5.5 mA

    Published datasheet value

  • Useful Power Outputf

    47 W

    Published datasheet value

  • ~ With 6.3 volts ac on filament, do plate voltage of 300 volts, do grid — published value 1

    6.3 V

    Published datasheet value

  • ~ With 6.3 volts ac on filament, do plate voltage of 300 volts, do grid — published value 2

    300 V

    Published datasheet value

  • xo.2 voltage of 200 volts, and do grid-No.i voltage of -29 volts. + — published value 1

    200 V

    Published datasheet value

  • xo.2 voltage of 200 volts, and do grid-No.i voltage of -29 volts. + — published value 2

    -29 V

    Published datasheet value

  • ac on filament, do plate voltage oP 600 volts, do grid-x o-.2 voltage

    600 V

    Published datasheet value

  • of 200 volts, grid-N o.i resist or of 30,000 t 10% ohms, do plate current — published value 1

    200 ohm

    Published datasheet value

  • of 200 volts, grid-N o.i resist or of 30,000 t 10% ohms, do plate current — published value 2

    30000 ohm

    Published datasheet value

  • of 200 volts, grid-N o.i resist or of 30,000 t 10% ohms, do plate current — published value 3

    10 ohm

    Published datasheet value

  • of 100 to 112 ma., do grid-N o.l current of 2 to 2.5 ma., and frequency — published value 1

    100 mA

    Published datasheet value

  • of 100 to 112 ma., do grid-N o.l current of 2 to 2.5 ma., and frequency — published value 2

    112 mA

    Published datasheet value

  • of 100 to 112 ma., do grid-N o.l current of 2 to 2.5 ma., and frequency — published value 3

    2 mA

    Published datasheet value

  • of 100 to 112 ma., do grid-N o.l current of 2 to 2.5 ma., and frequency — published value 4

    2.5 mA

    Published datasheet value