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Specialized - Traveling Wave ·TravelingWave

F6825

High-power pulsed 2–4 GHz traveling-wave amplifier producing approximately 2 kW peak RF output at 3 GHz with about 30 dB gain.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
DUODECAL5
Base pins
-
Nominal heater
-

Description

The F6825 is a one-kilowatt pulsed traveling-wave amplifier using a helix slow-wave structure for broadband microwave power amplification.

Socket description

Small-shell Duodecal 5-contact CRT base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
DUODECAL5
Base pins
-
Nominal heater voltage
-
Nominal heater current
-
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

TravelingWave

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published maximum ratings and characteristics audited; remaining numeric data retained densely in parameter table.

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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Other

  • The F [1]

    6825

    The F-6825 is a 1 kilowatt pulse traveling wave amplifier tube having 30 db gain

  • The F [2]

    1

    The F-6825 is a 1 kilowatt pulse traveling wave amplifier tube having 30 db gain

  • The F [3]

    30

    The F-6825 is a 1 kilowatt pulse traveling wave amplifier tube having 30 db gain

  • and [1]

    2000 MHz

    and 2000 to 4000 mc frequency range. It is constructed in a rugged metal envelope

  • and [2]

    4000 MHz

    and 2000 to 4000 mc frequency range. It is constructed in a rugged metal envelope

  • Published value [1]

    5

    . 005 and pulse widths up to 15 microseconds can be used.

  • Published value [2]

    15

    . 005 and pulse widths up to 15 microseconds can be used.

  • Heater Voltage [1]

    6.3 V

    Heater Voltage 6.3 (£10%) volts

  • Heater Voltage [2]

    10 V

    Heater Voltage 6.3 (£10%) volts

  • Heater Current

    5 A

    Heater Current : 5.0 amperes

  • Maximum Anode Voltage (Note [1]

    1 V

    Maximum Anode Voltage (Note 1) 8500 wvolts peak

  • Maximum Anode Voltage (Note [2]

    8500 V

    Maximum Anode Voltage (Note 1) 8500 wvolts peak

  • Maximum Shell Current (Note [1]

    2 A

    Maximum Shell Current (Note 2) 0.5 ampere peak

  • Maximum Shell Current (Note [2]

    500 mA

    Maximum Shell Current (Note 2) 0.5 ampere peak

  • Maximum Collector Voltage (Note [1]

    3 V

    Maximum Collector Voltage (Note 3) 9000 volts peak

  • Maximum Collector Voltage (Note [2]

    9000 V

    Maximum Collector Voltage (Note 3) 9000 volts peak

  • Maximum Collector Dissipation {Note [1]

    4 W

    Maximum Collector Dissipation {Note 4) 150 watts average

  • Maximum Collector Dissipation {Note [2]

    150 W

    Maximum Collector Dissipation {Note 4) 150 watts average

  • Maximum R-F Input Power

    10 W

    Maximum R-F Input Power 10 watts average

  • Maximum R-F Output Power

    20 W

    Maximum R-F Output Power 20 watts average

  • Maximum Pulse Width (Beam)

    15

    Maximum Pulse Width (Beam) 15 microseconds

  • Maximum Cathode Current

    25 A

    Maximum Cathode Current 2,5 amperes peak

  • Maximum Frequency (Note [1]

    5 MHz

    Maximum Frequency (Note 5) 4000 mc

  • Maximum Frequency (Note [2]

    4000 MHz

    Maximum Frequency (Note 5) 4000 mc

  • Minimum Frequency (Note [1]

    5 MHz

    Minimum Frequency (Note 5) 2000 mc

  • Minimum Frequency (Note [2]

    2000 MHz

    Minimum Frequency (Note 5) 2000 mc

  • Air Flow on Collector Radiator {Note [1]

    4

    Air Flow on Collector Radiator {Note 4) 30 cfm

  • Air Flow on Collector Radiator {Note [2]

    30

    Air Flow on Collector Radiator {Note 4) 30 cfm

  • Glass Temperature

    160

    Glass Temperature 160°C max.

  • Center Frequency

    3000 MHz

    Center Frequency 3000 mc

  • Anode Voltage (Note [1]

    1 V

    Anode Voltage (Note 1) 8000 volts peak

  • Anode Voltage (Note [2]

    8000 V

    Anode Voltage (Note 1) 8000 volts peak

  • Cathode Current

    1.8 A

    Cathode Current 1.8 amperes peak

  • Collector Voltage (tied to Shell)

    8000 V

    Collector Voltage (tied to Shell) 8000 volts peak

  • Collector Current

    1.5 A

    Collector Current 1.5 amperes peak

  • Power Output (at center frequency)

    2 kW

    Power Output (at center frequency) 2 kw peak

  • Bandwidth to [1]

    3 MHz

    Bandwidth to 3 db power points 2,0-4.0 kmc

  • Bandwidth to [2]

    20 MHz

    Bandwidth to 3 db power points 2,0-4.0 kmc

  • Bandwidth to [3]

    -4 MHz

    Bandwidth to 3 db power points 2,0-4.0 kmc

  • Gain (Note [1]

    6

    Gain (Note 6) 30 db

  • Gain (Note [2]

    30

    Gain (Note 6) 30 db

  • Pulse Width

    2

    Pulse Width 2 | seconds

  • Note

    1 V

    Note 1: All voltages shown are with respect to cathode. Anode and helix are con-

  • Note

    2 A

    Note 2: The shell current is the difference between cathode current and collector

  • Note

    3

    Note 3: The tube may be operated with the collector tied to the shell {(anode and

  • difference between collector and shell must be limited to

    500

    difference between collector and shell must be limited to 500 volts maximum.

  • Note [1]

    4 W

    Note 4: Forced air cooling is required for average collector power in excess of 10

  • Note [2]

    10 W

    Note 4: Forced air cooling is required for average collector power in excess of 10

  • At the maximum collector power of [1]

    150 W

    At the maximum collector power of 150 watts, a minimum air flow of 20 cfm

  • At the maximum collector power of [2]

    20 W

    At the maximum collector power of 150 watts, a minimum air flow of 20 cfm

  • Note [1]

    5 MHz

    Note 5: Useful gain and power output exists below 2000 mc and above 4000 mc and

  • Note [2]

    2000 MHz

    Note 5: Useful gain and power output exists below 2000 mc and above 4000 mc and

  • Note [3]

    4000 MHz

    Note 5: Useful gain and power output exists below 2000 mc and above 4000 mc and

  • Note [1]

    6 MHz

    Note 6: This gain is obtained over the 2. 0 to 4. 0 kmc bandwidth at the power level

  • Note [2]

    2 MHz

    Note 6: This gain is obtained over the 2. 0 to 4. 0 kmc bandwidth at the power level

  • Note [3]

    0 MHz

    Note 6: This gain is obtained over the 2. 0 to 4. 0 kmc bandwidth at the power level

  • Note [4]

    4 MHz

    Note 6: This gain is obtained over the 2. 0 to 4. 0 kmc bandwidth at the power level

  • Note [5]

    0 MHz

    Note 6: This gain is obtained over the 2. 0 to 4. 0 kmc bandwidth at the power level

  • ( [1]

    1 V

    (1) Heater warm up of 2 minutes before applying high voltage is recommended.

  • ( [2]

    2 V

    (1) Heater warm up of 2 minutes before applying high voltage is recommended.

  • /

    1

    / 1 watt input