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Power - Triode (over 1000V 100W) ·Triode

3C27B

Microwave coaxial triode for pulsed oscillator service to approximately 1150 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 2.5 A

Description

Microwave coaxial triode for pulsed oscillator service to about 1150 MHz.

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
2.5 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0075 S
Amplification factor
23
Max plate voltage
5000 V
Max plate dissipation
150 W
Max grid dissipation
25 W

Values promoted only where clearly published for this section in the approved source.

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

1938 National Union

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • suitable resonant cavity circuits will deliver

    10 kw

    Published source value; see source line context.

  • at

    1150 megacycles

    Published source value; see source line context.

  • Heater Voltage

    6.3 Volts

    Published source value; see source line context.

  • Grid Veltage

    -1000 Volts

    Published source value; see source line context.

  • Anode Voltage {Instuntoneous)

    5000 Volts

    Published source value; see source line context.

  • Anode Dissipation

    150 Watts

    Published source value; see source line context.

  • Voltage

    6.3 Volts

    Published source value; see source line context.

  • Length

    3 inches

    Published source value; see source line context.

  • Freqnenci

    1140 megacycles

    Published source value; see source line context.

  • Anode Voltage (Instantaneous)

    5000 Volts

    Published source value; see source line context.

  • Peak Power Qutput

    8 Kw

    Published source value; see source line context.

  • late Badiator

    4 ft

    Published source value; see source line context.

  • Grid Radiator

    1 ft

    Published source value; see source line context.

  • TERMINATE IN

    3 IN

    Published source value; see source line context.

Characteristic

  • Current

    2.5 Amps

    Published source value; see source line context.

  • Transconductance (Eb =

    700 umhos

    Published source value; see source line context.

  • Cric to Plate

    3.5 uuf

    Published source value; see source line context.

  • Grid to Cathode

    4 uuf

    Published source value; see source line context.

  • Cathode to Plate

    1.45 uuf

    Published source value; see source line context.