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Specialized - Magnetron ·Magnetron

CV2362

Fixed-frequency pulsed magnetron covering 2750–2855 MHz in seven bands, delivering about 1.15 MW typical peak RF output. Designed for high-power microwave pulse service with roughly 36 kV peak anode operation.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
8.6 V / 9 A

Description

Fixed frequency pulse magnetron

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
8.6 V
Nominal heater current
9 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

No fixed ratings are recorded for this section.

Microwave/special-function section; schema has no directly applicable promoted electrode fields; published electrical data preserved in parameters.

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 English Electric Valve

Published operating points and test conditions from this source.

SECTION 1

Magnetron

Other

  • Frequency range (in seven bands)

    2855 MHz

    Frequency range (in seven bands) 2750 to 2855 MHz

  • Typical peak output power

    1.15 MW

    Typical peak output power 1.15 MW

  • Heater current

    9 A

    Heater current 9.0 A

  • Cathode heating time (mmlmum)

    3

    Cathode heating time (mmlmum) 3 minutes

  • Heater starting current (peak)

    50 A

    Heater starting current (peak) - 50 A

  • Anode voltage (peak)

    40 kV

    Anode voltage (peak) - 40 kV

  • Anode current {peak)

    80 A

    Anode current {peak) - 80 A

  • Pulse length

    1.25

    Pulse length — 1.25 us

  • Anode temperature

    0

    Anode temperature - a0 °c

  • Cathode terminal temperature

    150

    Cathode terminal temperature - 150 °C

  • V.S.W.R. at the output coupler

    1 V

    V.S.W.R. at the output coupler — 1.5:1

  • Heater voltage

    6

    Heater voltage . 6.0 \

  • Anode current (peak)

    70 A

    Anode current (peak) 70 A

  • Pulse length

    1

    Pulse length . 1.0 Hs

  • Pulse repetition rate

    1000 s

    Pulse repetition rate 1000 p.p.s.

  • Anode voltage (peak)

    36 KV

    Anode voltage (peak) 36 KV

  • Output power {mean)

    1 kW

    Output power {mean) 1 kW

  • Magnetic field (see note5)

    1800

    Magnetic field (see note5) . . . 1800 1800 gauss

  • Heater voltage (fortest)

    6

    Heater voltage (fortest) . . . . . 6.0 6.0 \

  • Anode current (peak)

    70 A

    Anode current (peak) . . . . . . 70 70 A

  • V.S.W.R. at the output coupler

    1 V

    V.S.W.R. at the output coupler L. 1.1 1.5:1

  • Rate of rise of voltage pulse

    150 kV

    Rate of rise of voltage pulse . . . 180 150 kV/us

  • Ancde voltage {peak)

    38 kV

    Ancde voltage {peak) . . . . 34 38 - - kV

  • Efficiency

    40

    Efficiency . . . . . . . . 40 - — — %

  • Frequency pulling

    7 MHz

    Frequency pulling . . . . . = - — 7.0 MHz

  • frequency

    8

    frequency . . . . . . . . . . . . . . . . . . senote8

  • Efficiency

    3 min

    Efficiency . .. . . . . . . . 3B % min

  • R.F. bandwidth at % power

    25 MHz

    R.F. bandwidth at % power . . . . . . . . . 25 MHz max

  • 1. With no anode input power

    1

    1. With no anode input power.

  • capacitance of 4000pF shunted across the heater directly at the input

    4000

    capacitance of 4000pF shunted across the heater directly at the input

  • terminals; in some cases a capacitance as high as 2uF may be necessary

    2 a

    terminals; in some cases a capacitance as high as 2uF may be necessary

  • 4. The rate of rise of voltage is the slope of the steepest tangent to the lead-

    4

    4. The rate of rise of voltage is the slope of the steepest tangent to the lead-

  • ing edge of the voltage pulse above 80% amplitude. Any capacitance used

    80

    ing edge of the voltage pulse above 80% amplitude. Any capacitance used

  • 6. With the valve operating into a mismatch of v.s.w.r. 1.5:1, phased to give

    1 a

    6. With the valve operating into a mismatch of v.s.w.r. 1.5:1, phased to give

  • level is less than 70% of the normal energy level .in the rated frequency

    70

    level is less than 70% of the normal energy level .in the rated frequency

  • number of input pulses over an interval of 60 seconds

    60

    number of input pulses over an interval of 60 seconds.

  • 7. Measured with heater voltage of 8.5V and no anode input power, the

    8.5

    7. Measured with heater voltage of 8.5V and no anode input power, the

  • heater current limits are 8.0A minimum, 10A maximum

    10

    heater current limits are 8.0A minimum, 10A maximum.

  • 8. Design test only

    8

    8. Design test only. The maximum frequency change with anode tempera-