4637

RCA high-power beam-power transmitting tube for RF, pulse, modulation, and related transmitter service, with 300-watt maximum plate dissipation and application-specific operating limits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 3.2 A

Description

High-power beam power tube for RF, pulse, modulation, or transmitting service. The RCA source was reviewed for heater/filament data, maximum ratings, RF and pulse operating conditions, capacitances, cooling requirements, and application-specific limits.

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: 3.2 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

Beam Power

X-ray radiationInterelectrode capacitances

Amplification factor: 18
Max plate voltage: 2500 V
Max screen voltage: 400 V
Max plate dissipation: 300 W
Max cathode current: 250 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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Maximum plate voltage
2500 V
PromotedValue
Maximum screen-grid voltage
400 V
PromotedValue
Maximum plate dissipation
300 W
PromotedValue
Maximum cathode/plate current
250 mA
PromotedValue
and heater)
250 mA
Published datasheet value
Plate-Core Temperature
250 mA
Published datasheet value

Characteristics

Mu / amplification factor
18
PromotedValue
Heater/filament voltage
6.3 V
Nominal operating value
Heater/filament current
3.2 A
Nominal operating value
RF Power Amplifier and Oscillator to 1215 MHz
1215 A
Published datasheet value
Matrix•Type Cathode
340 W
CW
105 Watts CW Power — published value 1
105 W
CW
105 Watts CW Power — published value 2
400 W
CW
Output at 1215 MHz
1215 MHz
Published datasheet value
Voltage (ac or dc)
6.3 V
Published datasheet value
Current at 6.3 volts — published value 1
6.3 V
Published datasheet value
Current at 6.3 volts — published value 2
3.2 V
Published datasheet value
Minimum heating time
60
Published datasheet value
Mu-Factor, Grid No.2 to Grid No.l
18
Published datasheet value
DC Plate Voltage
2500 V
Published datasheet value
DC Grid-No.2 Voltage
400 V
Published datasheet value
DC Grid-No.l Voltage
200 V
Published datasheet value
DC Plate Current
250 mA
Published datasheet value
Plate Dissipation
300
Published datasheet value