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Specialized - Klystron ·Klystron

KS785

Mechanically tunable reflex klystron designed for local-oscillator and signal-generator service over approximately 6.5–7.5 GHz.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
IO
Base pins
-
Nominal heater
6.3 V / 500 mA

Description

The Mullard KS785 is a mechanically tunable reflex klystron for local-oscillator and signal-generator service from about 6.5 to 7.5 GHz.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
IO
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
500 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.

Reflex-klystron interaction system.

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 Mullard

Published operating points and test conditions from this source.

SECTION 1

Klystron

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    500 mA

  • Mechanical Tuning Frequency Minimum

    6.5 GHz

  • Mechanical Tuning Frequency Maximum

    7.5 GHz

  • Electronic Tuning Range

    25 MHz

    HalfPowerPoints

  • Power Output Minimum

    50 mW

    AcrossBand

  • Power Output

    85 mW

    7GHzPlusMinus20MHz

  • Reflector Voltage for Maximum Power Minimum

    -175 V

  • Reflector Voltage for Maximum Power Maximum

    -100 V

  • Reflector Voltage Range Minimum

    -215 V

  • Reflector Voltage Range Maximum

    -60 V

  • Frequency Temperature Coefficient

    -0.5 MHz/degC

Other

  • Resonator Voltage

    300 V

    7GHz

  • Resonator Current

    24 mA

    7GHz

  • Reflector Voltage

    -140 V

    7GHz