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Power - Triode (over 1000V 100W) ·Triode

5946

Forced-air-cooled power triode designed for plate-pulsed amplifier and oscillator service through approximately 1.3 GHz. Its ratings include high pulse plate voltage and 250 W average plate dissipation for high-power UHF pulse applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 3.4 A

Description

Forced-air-cooled power triode for plate-pulsed oscillator and amplifier service through 1300 MHz.

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
9
Nominal heater voltage
6.3 V
Nominal heater current
3.4 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

Triode

X-ray radiationInterelectrode capacitances
Amplification factor
25
Max plate voltage
7500 V
Max plate dissipation
250 W
Max cathode current
1 A

Representative electrical section 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater or filament voltage

    6.3 V

    Published nominal value

  • Heater or filament current

    3.4 A

    Published nominal value

  • Amplification factor

    27

    Published operating characteristic

Other

  • Maximum plate dissipation

    250 W

    Published maximum rating

  • Useful pulse power output

    14000 W

    Plate-pulsed UHF oscillator/amplifier

  • Maximum operating frequency

    1250 MHz

    Published pulse service

  • Minimum air flow

    16 cfm

    At 250 W plate dissipation

Data set 02

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    3.4 A

  • Application

    PlatePulsedOscillatorAndAmplifier

Other

  • MaximumOperatingFrequency

    1300 MHz

Data set 03

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater/filament voltage nominal

    6.3 V

    WholeTube

  • Heater/filament current

    3.4 A

    WholeTube

  • Voltage (AC or DC)

    6.3 V

    Published source row

  • Current

    3.4 A

    Published source row

  • Minimum heating time

    1 min

    Published source row

  • Amplification Factor

    25

    Published source row

  • PLATE-SUPPLY VOLTAGE

    7500 V

    Published source row

  • PLATE-SUPPLY VOLTAGE (value 2)

    7500 V

    Published source row

  • GRID-BIAS VOLTAGE

    600 V

    Published source row

  • GRID-BIAS VOLTAGE (value 2)

    600 V

    Published source row

  • PEAK RECTIFIED GRID CURRENT

    1 A

    Published source row

  • PEAK RECTIFIED GRID CURRENT (value 2)

    750 mA

    Published source row

  • DC PLATE CURRENT

    45 mA

    Published source row

  • DC PLATE CURRENT (value 2)

    250 mA

    Published source row

  • DC GRID CURRENT

    10 mA

    Published source row

  • DC GRID CURRENT (value 2)

    70 mA

    Published source row

  • PLATE INPUT

    340 W

    Published source row

  • PLATE INPUT (value 2)

    340 W

    Published source row

  • PLATE DISSIPATION

    250 W

    Published source row

  • PLATE DISSIPATION (value 2)

    250 W

    Published source row

  • Plate-Supply Voltage

    5500 V

    Published source row

  • Plate-Supply Voltage (value 2)

    7500 V

    Published source row

  • Grid-Bias Voltage

    375 V

    Published source row

  • Grid-Bias Voltage (value 2)

    500 V

    Published source row

  • Peak RF Grid Voltage

    625 V

    Published source row

  • Peak RF Grid Voltage (value 2)

    850 V

    Published source row

  • Peak Rectified Grid Current

    250 mA

    Published source row

  • Peak Rectified Grid Current (value 2)

    500 mA

    Published source row

  • DC Plate Current

    35 mA

    Published source row

  • DC Plate Current (value 2)

    45 mA

    Published source row

  • DC Grid Current

    0 mA

    Published source row

  • DC Grid Current (value 2)

    25 A

    Published source row

  • DC Grid Current (value 3)

    5 mA

    Published source row

Characteristic

  • Plate Dissipation

    150 W

    Published source row

  • Plate Dissipation (value 2)

    200 W

    Published source row

  • Plate Dissipation (value 3)

    250 W

    Published source row

  • Min. Air Flow

    5.7 cfm

    Published source row

  • Min. Air Flow (value 2)

    10 cfm

    Published source row

  • Min. Air Flow (value 3)

    16 cfm

    Published source row

  • Static Pressure

    0.16

    Published source row

  • Static Pressure (value 2)

    0.4

    Published source row

  • Static Pressure (value 3)

    0.85

    Published source row

  • Heater Current

    1 A

    Published source row

  • Heater Current (value 2)

    3.05 A

    Published source row

  • Heater Current (value 3)

    3.75 A

    Published source row

  • Grid-Plate Capacitance

    5.6 pF

    Published source row

  • Grid-Plate Capacitance (value 2)

    6.6 pF

    Published source row

  • Grid-Cathode Capacitance

    10.5 pF

    Published source row

  • Grid-Cathode Capacitance (value 2)

    12.5 pF

    Published source row

  • Plate-Cathode Capacitance

    3 pF

    Published source row

  • Plate-Cathode Capacitance (value 2)

    0.12 pF

    Published source row

  • Plate-Cathode Capacitance (value 3)

    0.26 pF

    Published source row

  • Plate Voltage

    1 V

    Published source row

  • Plate Voltage (value 2)

    4 V

    Published source row

  • Plate Voltage (value 3)

    500 V

    Published source row

  • Plate Voltage (value 4)

    850 V

    Published source row

  • Plate Voltage

    1 V

    Published source row

  • Plate Voltage (value 2)

    5 V

    Published source row

  • Plate Voltage (value 3)

    690 V

    Published source row

  • Plate Voltage (value 4)

    1140 V

    Published source row

  • Grid Voltage

    1 V

    Published source row

  • Grid Voltage (value 2)

    6 V

    Published source row

  • Grid Voltage (value 3)

    -165 V

    Published source row

  • Peak Cathode Current

    1 A

    Published source row

  • Peak Cathode Current (value 2)

    7 A

    Published source row

  • Peak Cathode Current (value 3)

    12 A

    Published source row

  • Useful Power Output at Peak of Pulse

    1.8

    Published source row

  • Useful Power Output at Peak of Pulse (value 2)

    12

    Published source row

  • Note

    1 V

    Published source row

  • Note (value 2)

    6.9 V

    Published source row

  • Note

    2

    Published source row

  • Note (value 2)

    -15

    Published source row

  • give do plate current of2

    50

    Published source row

  • Note u: With do grid voltage of

    -10

    Published source row

  • give do plate current of

    25

    Published source row

  • Note

    5

    Published source row

  • Note (value 2)

    -20

    Published source row

  • give do plate current of

    250

    Published source row

  • Note

    6

    Published source row

  • Note (value 2)

    1600

    Published source row

  • give do plate current of

    1

    Published source row

  • Note

    7

    Published source row

  • Note g: With peak positive-pulse plate-supply voltage of

    7500 V

    Published source row

  • current from pulse supply ofu

    5

    Published source row

  • current of

    0.5

    Published source row

  • current of (value 2)

    0.01

    Published source row