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Power - Pentode Single (NOT beam) (under 10W) ·Pentode

M8082

Special-quality rugged output pentode for professional equipment exposed to shock and vibration.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 200 mA

Description

Special-quality output pentode for equipment subject to vibration and shock and requiring controlled electrical characteristics.

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
200 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
130000 Ω
Transconductance
0.0025 S
Max plate voltage
300 V
Max screen voltage
275 V
Max plate dissipation
4.75 W
Max screen dissipation
0.8 W
Max cathode current
23 mA

Special-quality output pentode.

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

Pentode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    200 mA

  • Plate Voltage

    250 V

  • Screen Voltage

    250 V

  • Plate Current

    16 mA

  • Screen Current

    2.3 mA

  • Grid Voltage

    -13.5 V

  • Transconductance

    2500 uS

  • Plate Resistance

    130000 ohm

  • Input Capacitance

    3.8 pF

  • Output Capacitance

    6.5 pF

  • Plate-Grid Capacitance Maximum

    0.3 pF

Other

  • Maximum Operating Frequency

    100 MHz

Data set 02

1967 Mullard Receiving Tubes for Maintenance

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Ctn

    3.8 pF

    Published in approved M8082.pdf target datasheet; Section1

  • Co ut

    6.5 pF

    Published in approved M8082.pdf target datasheet; Section1

Characteristic

  • t,

    16 mA

    Published in approved M8082.pdf target datasheet; Section1

  • 1. 2

    2.3 mA

    Published in approved M8082.pdf target datasheet; Section1

  • gm

    2.5 mA

    Published in approved M8082.pdf target datasheet; Section1

Other

  • Vg

    2 mA

    Published in approved M8082.pdf target datasheet; Section1

  • P g2 max

    800 mW

    Published in approved M8082.pdf target datasheet; Section1

  • Ig 1 max

    3.3 mA

    Published in approved M8082.pdf target datasheet; Section1

  • Ik max

    23 mA

    Published in approved M8082.pdf target datasheet; Section1

  • Max im um acce leration (co nt in uous ope ration)

    2.5 g

    Published in approved M8082.pdf target datasheet; Section1

  • Maxim um shock (s hort d urat io n)

    500 g

    Published in approved M8082.pdf target datasheet; Section1

  • Heater current 0.65 184

    216 mA

    Published in approved M8082.pdf target datasheet; Section1

  • Anode cu r re nt { O~ 15 12

    18 mA

    Published in approved M8082.pdf target datasheet; Section1

  • 13.9 16.1

    0.86 mA

    Published in approved M8082.pdf target datasheet; Section1

  • Screen -grid cu rren t { O~ 2.0 1.3

    2.7 mA

    Published in approved M8082.pdf target datasheet; Section1

  • 1.74 2.26

    0.2 mA

    Published in approved M8082.pdf target datasheet; Section1

  • J 500 hou rs 2.5 1 .7

    3.2 mA

    Published in approved M8082.pdf target datasheet; Section1

  • "( 1000 hou rs 4.0 1 .6

    3.2 mA

    Published in approved M8082.pdf target datasheet; Section1

  • othe r vo ltages appl ied,

    5 g

    Published in approved M8082.pdf target datasheet; Section1