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Power - Beam (NOT sweep) ·BeamPower

6HL5

High-perveance beam-power pentode designed for sensitive audio-output amplifier service, providing high power sensitivity for receiving equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9QW
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 950 mA

Description

High-perveance beam-power pentode for sensitive audio output amplifier service.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9QW
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
950 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9QW - 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

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
7500 Ω
Transconductance
0.017 S
Amplification factor
13
Max plate voltage
330 V
Max screen voltage
250 V
Max plate dissipation
12 W
Max screen dissipation
2.5 W
Max cathode current
110 mA

Published ratings/characteristics promoted from supplied source; additional conditions retained in parameter table.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    950 mA

  • Plate Resistance

    7500 ohm

  • Transconductance

    17000 uS

  • Amplification Factor

    13

Other

  • Plate Voltage Maximum

    330 V

  • Screen Voltage Maximum

    250 V

  • Plate Dissipation Maximum

    12 W

  • Screen Dissipation Maximum

    2.5 W

  • Cathode Current Maximum

    110 mA

  • Plate Voltage

    130 V

    ClassA

  • Screen Voltage

    130 V

    ClassA

  • Plate Current

    70 mA

    ClassA

  • Screen Current

    5 mA

    ClassA

  • Power Output

    3 W

    ClassA

  • Power Output

    16.5 W

    TwoTubes;PushPull;ClassAB

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Plate resistance

    7500 ohm

  • Transconductance

    17000 uS

  • Amplification factor

    13

Other

  • Maximum plate voltage

    330 V

  • Maximum screen-grid voltage

    250 V

  • Maximum plate dissipation

    12 W

  • Maximum screen-grid dissipation

    2.5 W

  • Maximum cathode current

    110 mA

  • Heater voltage

    6.3 V

  • Heater current

    950 mA

  • Typical plate voltage

    130 V

    ClassA

  • Typical screen-grid voltage

    130 V

    ClassA

  • Typical plate current

    70 mA

    ClassA

  • Typical screen-grid current

    5 mA

    ClassA

  • Typical Class A power output

    3 W

    ClassA

  • Push-pull plate voltage

    260 V

    ClassAB PushPull TwoTubes

  • Push-pull power output

    16.5 W

    ClassAB PushPull TwoTubes

  • Push-pull plate-to-plate load resistance

    5500 ohm

    ClassAB PushPull TwoTubes