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Specialized - Magnetron ·Magnetron

7008

Pulsed microwave magnetron oscillator designed for radar or microwave-transmitter service.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
13.75 V / 3.5 A

Description

Pulsed microwave magnetron oscillator for radar or microwave transmitter service. The supplied datasheet was reviewed for heater/filament data, maximum ratings, operating conditions, capacitances, pulse/RF data, and thermal limits.

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
13.75 V
Nominal heater current
3.5 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

Magnetron

X-ray radiationInterelectrode capacitances
Max plate voltage
23000 V

Magnetron. Peak anode voltage/current, pulse input/output, frequency, VSWR, and thermal limits are retained in TUBE_SECTION_PARAMETER because conventional valve promoted fields do not map cleanly.

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

Magnetron

Characteristics

  • Voltage — published value 1

    13.75

    Published datasheet value

  • Voltage — published value 2

    10

    Published datasheet value

  • Current at 13.75 volts — published value 1

    13.75 A

    Published datasheet value

  • Current at 13.75 volts — published value 2

    3.15 A

    Published datasheet value

  • current must never exceed 12 amperes, even momentari ly

    12 A

    Published datasheet value

  • Frequency — published value 1

    8500 MHz

    Published datasheet value

  • Frequency — published value 2

    9600 MHz

    Published datasheet value

  • Peak Anode Voltage — published value 1

    22000 V

    Published datasheet value

  • Peak Anode Voltage — published value 2

    22000 V

    Published datasheet value

  • Peak Anode Current — published value 1

    27.5 A

    Published datasheet value

  • Peak Anode Current — published value 2

    27.5 A

    Published datasheet value

  • Pulse-Repetition Rate — published value 1

    400

    Pulse

  • Pulse-Repetition Rate — published value 2

    4000

    Pulse

  • Pulse Duration — published value 1

    2.5

    Pulse

  • Pulse Duration — published value 2

    0.25

    Pulse

  • Drive-Shaft Torque — published value 1

    6

    Published datasheet value

  • Drive-Shaft Torque — published value 2

    6

    Published datasheet value

  • Peak Power Output (Approx.) — published value 1

    220000 W

    Published datasheet value

  • Peak Power Output (Approx.) — published value 2

    220000 W

    Published datasheet value

  • there i5 a mismatched load. Arcing In the waveguide due 20 lack of

    20

    Published datasheet value

  • Heater Current — published value 1

    1 A

    Published datasheet value

  • Heater Current — published value 2

    3.5 A

    Published datasheet value

  • Peak Anode Voltage — published value 1

    2000 V

    Published datasheet value

  • Peak Anode Voltage — published value 2

    20000 V

    Published datasheet value

  • Peak Anode Voltage — published value 3

    23000 V

    Published datasheet value

  • Peak Power Output — published value 1

    3000 W

    Published datasheet value

  • Peak Power Output — published value 2

    180000 W

    Published datasheet value

  • Pulses Missing from Total — published value 1

    45

    Pulse

  • Pulses Missing from Total — published value 2

    0.25

    Pulse

  • Note 1 — published value 1

    1

    Published datasheet value

  • Note 1 — published value 2

    13.75

    Published datasheet value

  • Note 2 — published value 1

    2 A

    Published datasheet value

  • Note 2 — published value 2

    27.5 A

    Published datasheet value

  • Note 3 — published value 1

    3 A

    Published datasheet value

  • Note 3 — published value 2

    27.5 A

    Published datasheet value

  • anode voltage in the order of 22 kv., •anode-D1 ock temperature of

    22000 V

    Published datasheet value

  • load-voltage standing-wave ratio equal to or less than 1.05

    1.05

    Published datasheet value

  • Note 4

    4

    Pulse

  • N Ote 5 — published value 1

    5 A

    Published datasheet value

  • N Ote 5 — published value 2

    27.5 A

    Published datasheet value

  • anode voltage in the order of 22 kv, anode-block temperature of

    22000 V

    Published datasheet value

  • 115° C app rox., pulse duration oP 0.25 microsecond, load-voltage — published value 1

    115 s

    Pulse

  • 115° C app rox., pulse duration oP 0.25 microsecond, load-voltage — published value 2

    0.25 s

    Pulse

  • p u15e at which the current is 50 per Cent of the smooth peak value

    50

    Published datasheet value

  • leading edge above 50 per cent of the smooth peak value. Measurement of

    50

    Published datasheet value

  • with an input capacitance not exceeding 6 µµt. An oscilloscope of

    6

    Published datasheet value

  • maintain the temperature of the anode block below 150° C under

    150

    Published datasheet value

  • the temperature of this terminal below 165° C

    165

    Published datasheet value

  • No. 1 15364 with bui lt-in capacitor, or equivalent — published value 1

    1

    Published datasheet value

  • No. 1 15364 with bui lt-in capacitor, or equivalent — published value 2

    15364

    Published datasheet value

  • ing current never exceed, even momentari ly, a value of 12

    12

    Published datasheet value

  • 7008 begins to osci l late, the heater voltage IEfI should be

    7008

    Published datasheet value

  • The frequency of the ryoo8 may 6e preset by turning the

    6 mA

    Published datasheet value

  • the drive shaft are required to tune through the 8500-to-9600 — published value 1

    8500

    Published datasheet value

  • the drive shaft are required to tune through the 8500-to-9600 — published value 2

    9600

    Published datasheet value

  • throughout the temperature range of -55° to 150° C. Mechanical — published value 1

    -55

    Published datasheet value

  • throughout the temperature range of -55° to 150° C. Mechanical — published value 2

    150

    Published datasheet value

  • FREOUENCY ~Mc~ = 8500

    8500 MHz

    Published datasheet value

  • PEAK ANODE AMP RES=27.5

    27.5 A

    Published datasheet value

  • PULSE DURATION ~/lSEC)=2.5

    2.5

    Pulse

  • PULSE-REPETITION RATE — published value 1

    48

    Pulse

  • PULSE-REPETITION RATE — published value 2

    0

    Pulse

  • NOTE 2: THE AXIS OF THE HEATER-CATHODE TERMINAL WILL BE

    2

    Published datasheet value

  • NOTE 7

    7

    Published datasheet value

  • NOTE 8: THE HEATER TERMINAL AND THE HEATER-CATHODE TER

    8

    Published datasheet value

  • NOTE 8

    8

    Published datasheet value

  • NOTE 10

    10

    Published datasheet value

  • NOTE 1 1 — published value 1

    1

    Published datasheet value

  • NOTE 1 1 — published value 2

    1

    Published datasheet value

  • PEAK ANODE AMPERES=27.5

    27.5 A

    Published datasheet value

  • PULSE DURATION (µSEC )=1

    1

    Pulse

  • 9308 — published value 1

    9308

    Pulse

  • 9308 — published value 2

    1000

    Pulse

  • AMBIENT TEMPERATURE 'C APPROX,)=25

    25

    Published datasheet value

  • AMBIENT TEMPERATURE (C APPROX.) =25 ~ ~■~

    25

    Published datasheet value

  • FREQUENCY RANGE (Mc)=8500 TO 9600 — published value 1

    8500 MHz

    Published datasheet value

  • FREQUENCY RANGE (Mc)=8500 TO 9600 — published value 2

    9600 MHz

    Published datasheet value

  • PULSE DURATION(µSEC )=1

    1

    Pulse

  • PULSE-REPETIT ON RATE(PPS) = 1000

    1000

    Pulse

  • PULSE DURATION (It, SEC)=2.5

    2.5

    Pulse

  • PULSE-REPETITION RATE (PPS)=400

    400

    Pulse

Other

  • PEAK ANODE VOLTAGE

    2000 V

    Published datasheet value

  • PEAK ANODE CURRENT

    27.5 mA

    Published datasheet value

  • PEAK POWER INPUT

    630000 W

    Published datasheet value

  • AVERAGE POWER INPUT

    630 W

    Published datasheet value

  • PULSE DURATION

    2.75 mA

    Pulse

  • ANODE-BLOCK TEMPERATURE

    150 mA

    Published datasheet value

  • HEATER-CATHODE-TERMINAL TEMPERATURE

    165 mA

    Published datasheet value

  • LOAD-VOLTAGE STANDING-WAVE RATIO — published value 1

    1 mA

    Published datasheet value

  • LOAD-VOLTAGE STANDING-WAVE RATIO — published value 2

    5 mA

    Published datasheet value

  • 115° C aDProx., pulse duration of 2.5 microseconds, and maximum — published value 1

    115 mA

    Pulse

  • 115° C aDProx., pulse duration of 2.5 microseconds, and maximum — published value 2

    2.5 mA

    Pulse

  • Ssoo th Peak Pa 1ue. The maximum value of a smooth curve drawn through

    1 mA

    Published datasheet value

  • achieved. Typical servo-drive-shaft torque is 6 ounce-inches

    6

    Published datasheet value

Data set 02

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

Magnetron

Characteristic

  • Frequency Range

    8.5-9.6 GHz

  • Heater Voltage

    13.75 V

  • Heater Current

    2.9-3.3 A

  • RF Output Power

    200 kW

Other

  • Peak Anode Voltage

    23000 V

Application

  • Oscillator Service

    Magnetron