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Specialized - Klystron ·Klystron

SZ51

Rugged reflex klystron local oscillator centered near 8.45 GHz, intended for severe environments requiring high stability and reliability.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 1.2 A

Description

Ferranti SZ51 is a rugged reflex klystron local oscillator centered near 8.45 GHz with a broad tuning range. It was designed for severe environments demanding high frequency stability and reliability.

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
1.2 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

Klystron

X-ray radiationInterelectrode capacitances
Max plate voltage
350 V

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

    6.3 V

    Nominal

  • Heater voltage absolute limits

    5.7 to 6.9 V

  • Heater current

    1.2 A

    Nominal ±10%

  • Maximum resonator voltage

    350 V

  • Maximum resonator current

    60 mA

  • Maximum negative reflector voltage

    500 V

    Magnitude; reflector negative

  • Maximum reflector current

    10 uA

  • Maximum heater-cathode voltage

    45 V

  • Maximum body temperature

    200 C

  • Reflector voltage

    -185 to -90 V

    350 V resonator

  • Typical resonator current

    - to 60 mA

    350 V resonator

  • Typical power output

    40 to - mW

    350 V resonator

Frequency

  • Operating frequency

    8050 to 8850 Mc/s

    8450 ±400 Mc/s

Characteristic

  • Electronic tuning range

    30 to 80 Mc/s

  • Modulation sensitivity

    0.6 to 2.7 Mc/s/V

  • Temperature coefficient

    -100 to 50 kc/s/C

  • Maximum tuner resetting error

    1 Mc/s

  • Maximum tuner side-thrust error

    0.5 Mc/s