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3K27

Sperry reflex klystron designed specifically for microwave oscillator service, providing tunable high-frequency generation with a reflector-controlled electron beam.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 1.5 A

Description

The 3K27 is a Sperry reflex klystron intended for oscillator service at microwave frequencies.

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: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 1.5 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

No fixed ratings are recorded for this section.

Special microwave/gas-discharge section; published electrical data retained as section parameters.

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

1945 Sperry

Published operating points and test conditions from this source.

SECTION 1

Klystron

Other

Resonator voltage
1000 V
CW
Resonator voltage
1000 V
CW
Resonator current
90 mA
CW
Resonator current
90 mA
CW
Resonator dissipation
80 W
CW
Resonator dissipation
80 W
CW
Control electrode voltage
-200 to 20 V
CW
Control electrode voltage
-200 to 20 V
CW