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Specialized - Klystron ·Klystron

SY30

Rugged low-noise water-cooled two-resonator klystron power amplifier for continuous-wave X-band service, typically producing approximately 175–200 W.

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

Description

Ferranti SY30 is a rugged, low-noise, water-cooled two-resonator klystron power amplifier for CW X-band service. Typical operation is around 8 kV and 150 mA with approximately 175-200 W RF output and 10 dB high-level gain.

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
-
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

Klystron

X-ray radiationInterelectrode capacitances
Max plate voltage
10000 V
Max cathode current
260 mA

Klystron beam/resonator anode voltage is promoted to MaxPlateVoltage where applicable; original published labels and conditions are retained in parameter rows.

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

1963 Ferranti

Published operating points and test conditions from this source.

SECTION 1

Klystron

Other

  • Heater voltage

    5 to 7 V

    Published operating range

  • Heater power

    19 to 21 W

    Published range

  • Maximum beam voltage

    10 kV

  • Maximum beam current

    260 mA

  • Maximum focus voltage

    50 V

  • Typical beam voltage

    8 kV

  • Typical beam current

    150 mA

  • Typical focus voltage

    -25 V

  • Typical efficiency

    17 %

  • Typical input power

    15 to 25 W

  • Typical output power

    175 to 200 W

  • Maximum output VSWR

    2

    Recommended limit

Frequency

  • Operating frequency

    9500 Mc/s

    Nominal

  • Tuning range

    20 Mc/s

    ±20 Mc/s

Cooling

  • Minimum water flow

    1 L/min

    At 20 C

Characteristic

  • Typical high-level RF gain

    10 dB

  • Typical low-level RF gain

    14 dB