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2K25

Reflex klystron designed for microwave oscillator service, with manufacturer-published tuning range and RF output characteristics.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 440 mA

Description

X-band reflex klystron covering approximately 8.5 to 9.66 GHz with about 25 mW output.

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: 6.3 V
Nominal heater current: 440 mA
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

Klystron

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

194X Western Electric Random

Published operating points and test conditions from this source.

SECTION 1

Klystron

Characteristics

Heater/filament voltage
5.8 V
Heater/filament current
440 mA

Data set 02

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Klystron

Characteristic

Frequency minimum
8500 MHz
ModeA
Frequency maximum
9660 MHz
ModeA

Other

Resonator voltage
300 V
ModeA
Repeller voltage minimum
-200 V
ModeA
Repeller voltage maximum
-85 V
ModeA
Resonator current
25 mA
ModeA
Electronic tuning range at half power
35 MHz
ModeA
Power output
25 mW
ModeA
Resonator voltage maximum
300 V
Section1
Repeller negative voltage maximum
400 V
Section1
Repeller positive voltage maximum
0 V
Section1
Resonator current maximum
37 mA
Section1
Coaxial output-line temperature maximum
70 °C
Section1
Heater-to-cathode voltage maximum
50 V
Section1

Data set 03

1971 NEC

Published operating points and test conditions from this source.

SECTION 1

Klystron

Other

frequency range of [1]
8500 W
frequency range of 8500 to 9,660 Mc and delivering a power
frequency range of [2]
9660 W
frequency range of 8500 to 9,660 Mc and delivering a power
output of [1]
20
output of 20 mW (min.) at 9,370 Mc, 300 Volts on resonator.
output of [2]
9370
output of 20 mW (min.) at 9,370 Mc, 300 Volts on resonator.
output of [3]
300
output of 20 mW (min.) at 9,370 Mc, 300 Volts on resonator.
Frequency Range ------ceeevveeniniininiin.e [1]
8500
Frequency Range ------ceeevveeniniininiin.e. 8,500 to 9,660 Mc
Frequency Range ------ceeevveeniniininiin.e [2]
9660
Frequency Range ------ceeevveeniniininiin.e. 8,500 to 9,660 Mc
Heater Voltage
6.3 V
Heater Voltage .......................................... 6.3 Volts
Heater GUITEE: i e el
0.44
Heater GUITEE: i e el 0.44 Amperes
Resonetor Voltage
330 V
Resonetor Voltage .......................................... 330 Volts
Resonetor Current - i oo
37 A
Resonetor Current - i oo 37 Milliamperes
Heater Voltage: - oooeeeeemiiiiiie, [1]
5.8 V
Heater Voltage: - oooeeeeemiiiiiie, 5.8~6.8 Volts |
Heater Voltage: - oooeeeeemiiiiiie, [2]
6.8 V
Heater Voltage: - oooeeeeemiiiiiie, 5.8~6.8 Volts |
Heater to Cathode Voltage «--+-coseeevemreneennnnnns +
50 V
Heater to Cathode Voltage «--+-coseeevemreneennnnnns +50 Volts ‘
Reflector Voltage [1]
0 V
Reflector Voltage ................................. 0 to —400 Volts
Reflector Voltage [2]
-400 V
Reflector Voltage ................................. 0 to —400 Volts
Frequency
937
Frequency ......................................................... 9,37OMC
Resonator Voltage «««-wweeeeeereremririniiiiiiin
300 V
Resonator Voltage «««-wweeeeeereremririniiiiiiin... 300 Volts Note: Coaxial Output Line passes through
Reflector Voltage ---«:ooeoeeeeieeeieenienes [1]
-130 V
Reflector Voltage ---«:ooeoeeeeieeeieenienes —130 to —180 Volts
Reflector Voltage ---«:ooeoeeeeieeeieenienes [2]
-180 V
Reflector Voltage ---«:ooeoeeeeieeeieenienes —130 to —180 Volts
Reflector Current --:oecoeoveeeee Less than
1 A
Reflector Current --:oecoeoveeeee Less than 1 Microampere
Power Output
35 W
Power Output .......................................... 35 Milliwatts
Published value
1 V
1. The heater voltage must be applied one minute before resonator ; T
Published value [1]
2 V
2. The reflector voltage must always be applied before resonator 3
Published value [2]
3 V
2. The reflector voltage must always be applied before resonator 3
frequency range of [1]
6250 W
frequency range of 6,250 to 7,060 Mc and delivering a power
frequency range of [2]
7060 W
frequency range of 6,250 to 7,060 Mc and delivering a power
output of [1]
80
output of 80 mW (min.) at 6,660 Mc, 300 Volts on resonator.
output of [2]
6660
output of 80 mW (min.) at 6,660 Mc, 300 Volts on resonator.
output of [3]
300
output of 80 mW (min.) at 6,660 Mc, 300 Volts on resonator.
Frequency Range [1]
6250
Frequency Range ................................. 6,250 to 7,060 MC
Frequency Range [2]
7060
Frequency Range ................................. 6,250 to 7,060 MC
Heater Voltage [1]
6 V
Heater Voltage .......................................... 6_3 Volts
Heater Voltage [2]
3 V
Heater Voltage .......................................... 6_3 Volts
Resonator Voltage
330 V
Resonator Voltage .................................... 330 Volts
Resonator Current :-«-.-occoceeeeeeeeniines
35 A
Resonator Current :-«-.-occoceeeeeeeeniines 35 Milliamperes
Heater Voltage [1]
5.8 V
Heater Voltage .............................. 5.8 to 6.8 Volt
Heater Voltage [2]
6.8 V
Heater Voltage .............................. 5.8 to 6.8 Volt
Heater to Cathode Voltage -------coveeeennennne +
50 V
Heater to Cathode Voltage -------coveeeennennne +50 Volts
Frequency
6660
Frequency ................................................ 6,660 MC
Resonator Voltage
300 V
Resonator Voltage .................................... 300 VOltS
Resonator Current --.--ocooceoceeeecene
25 A
Resonator Current --.--ocooceoceeeecene.. 25 Milliamperes
Reflector Voltage --:-:-c-cooeeereeeennens [1]
-70 V
Reflector Voltage --:-:-c-cooeeereeeennens —70 to —115 Volts Bottom View
Reflector Voltage --:-:-c-cooeeereeeennens [2]
-115 V
Reflector Voltage --:-:-c-cooeeereeeennens —70 to —115 Volts Bottom View
Reflector Current ---ceeeeveeee Less than
1 A
Reflector Current ---ceeeeveeee Less than 1 Microampere e e
Power Output
100 W
Power Output .................................... 100 MllhWattS Note: Coaxial Output Line passes through
Published value
1 V
1. The heater voltage must be applied one minute before resonator
Published value
2 V
2. The reflector voltage must always be applied before the resonator

Data set 04

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Klystron

Characteristic

and
723 A
and 723 AlB. tions due to temperature changes, part of
Heater current . I = o0
44 A
Heater current . I = o0.44 A
D.C. resonator voltage . . . . . V
300 V
D.C. resonator voltage . . . . . V== 300 V
D.C. repeller voltage range . . . . V,p= —85to—
200 V
D.C. repeller voltage range . . . . V,p= —85to—200V 1)
D.C. resonator current . . . . . I,
25 mA
D.C. resonator current . . . . . I, = 25 mA
Power output T | e
25 mW
Power output T | e 25 mW
Heater voltage . . . . . . . . . . V
63 V
Heater voltage . . . . . . . . . . V= 63V 8%
Heater carrent . . . . . . . . . . I; = o0
44 A
Heater carrent . . . . . . . . . . I; = o044 A
D.C. repeller voltage range . . . . V,,=—I30to—
185 V
D.C. repeller voltage range . . . . V,,=—I30to—185 V 1)
D.C. resonator current R
25 mA
D.C. resonator current R 25 mA
Power output e W,
30 mW
Power output e W, = 30 mW

Other

D.C. resonator voltage Vs = max
330 V
D.C. resonator voltage Vs = max. 330 V
D.C. repeller voltage neg. —V ep == max
400 V
D.C. repeller voltage neg. —V ep == max. 400 V
D.C. resonator current . l,es =— max
37 mA
D.C. resonator current . l,es =— max. 37 mA
Temperature of coaxial output line . . T = max
70 °C
Temperature of coaxial output line . . T = max. 70 °C
D.C. resonator voltage . V 4yes — max
330 V
D.C. resonator voltage . V 4yes — max. 330 V
D.C. repeller voltage neg. . . . - —V,, — max
400 V
D.C. repeller voltage neg. . . . - —V,, — max 400 V
D.C. resonator current . . . . . [, — max
37 mA
D.C. resonator current . . . . . [, — max 37 mA
Temperature of coaxial output line . . 7 — max
70 °C
Temperature of coaxial output line . . 7 — max. 70 °C