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Power - Triode ·Triode

5861

Disc-seal microwave triode for amplifier and oscillator service. Published operating data show several watts output around 1 GHz and useful operation into the multi-gigahertz region, with approximately 10 W plate dissipation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
DISC SEAL
Socket code
-
Base pins
-
Nominal heater
6.3 V / 400 mA

Description

5861 is listed in the supplied Amperex material as a disc-seal microwave triode for amplifier and oscillator service. Published operating conditions and electrical characteristics were captured from the supplied tables.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
DISC SEAL
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
400 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

DISC SEAL - 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
Plate resistance
5000 Ω
Transconductance
0.006 S
Amplification factor
30
Max plate voltage
350 V
Max plate dissipation
10 W
Max cathode current
40 mA

Published ratings and characteristics promoted from 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

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    400 mA

    Nominal

  • Maximum Plate Voltage

    350 V

  • Maximum Plate Dissipation

    10 W

Characteristic

  • Transconductance

    5600 µS

    Typical

  • Amplification Factor

    3

    Typical

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    400 mA

    Published heater rating

  • Amplification factor

    30

    MicrowaveTriode

  • Transconductance

    6000 µS

    MicrowaveTriode

  • Gain

    8 dB

    At 4000 MHz

  • Bandwidth

    50-0.1 dB MHz

    At 4000 MHz

Other

  • Maximum plate dissipation

    10 W

    MicrowaveTriode

  • Plate voltage

    250 V

    MicrowaveTriode

  • Plate current

    20 mA

    MicrowaveTriode

  • Power output

    2.8 W

    At 1000 MHz

  • Power output

    0.5 W

    At 3000 MHz

  • Power output

    1.8 W

    At 4000 MHz

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    400 mA

  • Plate voltage

    250 V

  • Plate current

    20 mA

  • Transconductance

    6000 uS

  • Amplification factor

    30

  • Plate resistance

    5000 ohm

Capacitance

  • Plate-cathode capacitance

    0.02 pF

  • Grid-cathode capacitance

    2.2 pF

  • Plate-grid capacitance

    1.1 pF