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Power - Tetrode (NOT beam) ·Tetrode

GS27B

Russian grounded-grid RF voltage-amplifier tetrode for circuits operating to approximately 1 GHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 1.14 A

Description

The GS27B is a rf voltage-amplifier tetrode for grounded-grid circuits to 1 ghz.

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
12.6 V
Nominal heater current
1.14 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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.01 S
Max plate voltage
650 V
Max screen voltage
200 V
Max plate dissipation
100 W
Max cathode current
210 mA

Promoted from English maximum/characteristic tables; grid, capacitance and output-power data retained in 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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Heater current

    1.04 A to 1.24 A

  • Mutual conductance

    10 mA/V

  • Peak cathode emission current minimum

    5 A

  • Inverse grid 1 current maximum

    20 uA

Other

  • Maximum anode voltage

    650 V

  • Maximum grid 2 voltage

    200 V

  • Maximum cathode/anode current

    210 mA

  • Anode dissipation

    100 W

  • Output power minimum

    40 W

  • Grid 1 dissipation

    2 W

  • Grid 2 dissipation

    2 W

  • Maximum instantaneous anode voltage

    1800 V

  • Maximum instantaneous grid 2 voltage

    300 V

  • Maximum grid current

    30 mA

  • Warm-up time maximum

    60 s

  • Operating frequency maximum

    1000 MHz

Capacitance

  • Grid1-cathode capacitance

    6 to 9 pF

  • Grid2-anode capacitance

    2 to 3.5 pF