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Power - Beam (NOT sweep) (over 1000V 100W) ·BeamPower

8437

Forced-air-cooled Cermolox beam-power transmitting tube with integral radiator, designed for high-power UHF radio-frequency service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
8.5 V / 88 A

Description

Forced-air-cooled Cermolox beam-power transmitting tube with integral radiator for high-power UHF service. The supplied RCA sheet was used for published ratings, characteristics, operating conditions, and capacitances where present.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
-
Nominal heater voltage
8.5 V
Nominal heater current
88 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
30
Max plate voltage
7000 V
Max screen voltage
1500 V
Max plate dissipation
10000 W

Electrical section extracted from supplied RCA data sheet.

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

Characteristic

  • Heater/filament voltage nominal

    8.5 V

    WholeTube

  • Heater/filament current nominal

    88 A

    WholeTube

  • Grid No

    1 pF

    Published source row

  • Grid No (value 2)

    0.4 pF

    Published source row

  • Grid No

    1 pF

    Published source row

  • Grid No (value 2)

    86 pF

    Published source row

  • Grid No

    2 pF

    Published source row

  • Grid No (value 2)

    20 pF

    Published source row

  • Grid No

    2 pF

    Published source row

  • Grid No (value 2)

    1.5 pF

    Published source row

  • G I -Grid-No

    1

    Published source row

  • GZ -Grid-No

    2

    Published source row

  • grid No

    2

    Published source row

  • filament, and filament)

    250 °C

    Published source row

  • Plate-Core Temperature

    250 °C

    Published source row

  • temperature to

    250 A

    Published source row

  • Published electrical value

    1 A

    Published source row

  • Published electrical value (value 2)

    1 A

    Published source row

  • Published electrical value (value 3)

    84 A

    Published source row

  • Published electrical value (value 4)

    92 A

    Published source row

  • Grid No.l to filament —

    78 pF

    Published source row

  • Grid No.l to filament — (value 2)

    94 pF

    Published source row

  • Plate to filament

    23 pF

    Published source row

  • Plate to filament (value 2)

    0.07 pF

    Published source row

  • Grid No

    2 pF

    Published source row

  • Grid No (value 2)

    18 pF

    Published source row

  • Grid No (value 3)

    22 pF

    Published source row

  • Grid No

    2 pF

    Published source row

  • Grid No (value 2)

    3 pF

    Published source row

  • Grid No (value 3)

    1.5 pF

    Published source row

  • Published electrical value

    3 V

    Published source row

  • Published electrical value (value 2)

    1 V

    Published source row

  • Published electrical value (value 3)

    4 V

    Published source row

  • Published electrical value (value 4)

    125 V

    Published source row

  • Note

    1 V

    Published source row

  • Note (value 2)

    5 V

    Published source row

  • Note

    4 V

    Published source row

  • Note (value 2)

    1750 V

    Published source row

  • Note (value 3)

    2 V

    Published source row

  • Published electrical value

    1200

    Published source row

  • Published electrical value (value 2)

    1

    Published source row

Other

  • INTEGRAL RADIATOR

    10000 W

    Published source row

  • THORIATED-TUNGSTEN MESH FILAMENT AT

    400 MHz

    Published source row

  • Voltage (AC or DC)

    8.5 V

    Published source row

  • Minimum heating time

    15 s

    Published source row

  • Mu-Factor, Grid No

    2

    Published source row

  • Grid No

    1 V

    Published source row

  • =

    7000 V

    Published source row

  • = (value 2)

    2 V

    Published source row

  • plate, grid-No

    2

    Published source row

  • To Plate, Grid-No

    2

    Published source row

  • For

    100 %

    Published source row

  • Frequency (cps)

    60

    Published source row

  • Frequency (cps) (value 2)

    60

    Published source row

  • Frequency (cps) (value 3)

    400

    Published source row

  • Voltage (v)

    208 V

    Published source row

  • Voltage (v) (value 2)

    115 V

    Published source row

  • Voltage (v) (value 3)

    115 V

    Published source row

  • For

    80

    Published source row

  • Frequency (cps)

    60

    Published source row

  • Frequency (cps) (value 2)

    60

    Published source row

  • Frequency (cps) (value 3)

    400

    Published source row

  • Frequency (cps) (value 4)

    400

    Published source row

  • Voltage (v)

    208 V

    Published source row

  • Voltage (v) (value 2)

    115 V

    Published source row

  • Voltage (v) (value 3)

    115 V

    Published source row

  • Voltage (v) (value 4)

    115 V

    Published source row

  • For

    60 %

    Published source row

  • Frequency (cps)

    60

    Published source row

  • Frequency (cps) (value 2)

    60

    Published source row

  • Frequency (cps) (value 3)

    400

    Published source row

  • Frequency (cps) (value 4)

    400

    Published source row

  • Voltage (v)

    208 V

    Published source row

  • Voltage (v) (value 2)

    115 V

    Published source row

  • Voltage (v) (value 3)

    115 V

    Published source row

  • Voltage (v) (value 4)

    115 V

    Published source row

  • DC Plate Voltage

    700 V

    Published source row

  • DC Grid-No

    2 V

    Published source row

  • DC Grid-No (value 2)

    1500 V

    Published source row

  • DC Grid—No.l Voltage —

    150 V

    Published source row

  • DC Plate Current

    4 A

    Published source row

  • DC Grid—No

    1 A

    Published source row

  • DC Grid—No (value 2)

    1.2 A

    Published source row

  • Plate Dissipation

    10000 W

    Published source row

  • DC Plate Voltage

    6500 V

    Published source row

  • Published electrical value

    1 V

    Published source row

  • Published electrical value (value 2)

    2 V

    Published source row

  • Published electrical value (value 3)

    1200 V

    Published source row

  • DC Grid—No

    1 V

    Published source row

  • DC Grid—No (value 2)

    30 V

    Published source row

  • DC Plate Current

    3.5 A

    Published source row

  • DC Grid—No

    2 A

    Published source row

  • DC Grid—No (value 2)

    50 mA

    Published source row

  • DC Grid—No.l Current

    530 mA

    Published source row

  • Driver Power Outputf (Approx )

    600 W

    Published source row

  • Output—Circuit Efficiency

    78 %

    Published source row

  • Useful Power Output

    10000 W

    Published source row

  • Grid—No.l—Circuit Resistance

    5000 ohm

    Published source row

  • Grid—No

    2

    Published source row

  • Grid—No (value 2)

    9

    Published source row