4638

RCA high-power beam-power transmitting tube for RF, pulse, modulation, and related transmitter service, with 1500-watt maximum plate dissipation and application-specific operating limits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 5.5 V / 17.3 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: 5.5 V
Nominal heater current: 17.3 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: 17
Max plate voltage: 13000 V
Max screen voltage: 1000 V
Max plate dissipation: 1500 W
Max cathode current: 1.5 A

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
13000 V
PromotedValue
Maximum screen-grid voltage
1000 V
PromotedValue
Maximum plate dissipation
1500 W
PromotedValue
Maximum cathode/plate current
1.5 A
PromotedValue
grid No.l, cathode and heater)
250 mA
Published datasheet value
Plate-Seal Temperature
250 mA
Published datasheet value

Characteristics

Mu / amplification factor
17
PromotedValue
Heater/filament voltage
5.5 V
Nominal operating value
Heater/filament current
17.3 A
Nominal operating value
Voltage (ac or dc)
5.5 V
Published datasheet value
Current at 5.5 volts — published value 1
5.5 V
Published datasheet value
Current at 5.5 volts — published value 2
17.3 V
Published datasheet value
Minimum heating time
180
Published datasheet value
Mu-Factor, Grid No.2 to Grid No.l
17
Published datasheet value
DC Plate Voltage
13000 V
Published datasheet value
Instantaneous Peak Plate Voltage
20000 V
Published datasheet value
(pulse duration < 0.1 s)
0.1
Pulse
DC Grid-No.2 Voltage
1000 V
Published datasheet value
DC Grid-No.l Voltage
-300 V
Published datasheet value
Grid-No.l Voltage
100 V
Published datasheet value
Peak Plate Current
30
Published datasheet value
DC Plate Current
1.5
Published datasheet value
Plate Dissipation (Average)
1500 W
Published datasheet value