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Voltage Pentode - Sharp Cutoff (single) ·Pentode

6AH6WA

High-transconductance sharp-cutoff pentode designed for wide-band and video amplification. Its substantial slope and fixed-control characteristic provide strong broadband gain for demanding signal stages.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 450 mA

Description

High-transconductance sharp-cutoff pentode for wide-band and video amplification. Data was extracted from the supplied Tung-Sol source, including published ratings, characteristics, and operating information.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
450 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
500000 Ω
Transconductance
0.009 S
Max plate voltage
300 V
Max screen voltage
150 V
Max plate dissipation
2.8 W
Max screen dissipation
0.45 W
Max cathode current
28 mA

Section 1 extracted from 6AH6WA.pdf.

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 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate Voltage Eb: ceee 300 300

    330 Vdc

    Plate Voltage Eb: ceee 300 300 330 Vdc

  • Grid #2 Voltage Ec2: cnen 150 150

    165 Vde

    Grid #2 Voltage Ec2: cnen 150 150 165 Vde

  • Heater Current: “eee It 410

    490 mA

    Heater Current: “eee It 410 490 mA 1 3

  • Interface Resis- cene riz cene

    25 Ω

    Interface Resis- cene riz cene 25 ohms i 3

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • MaximumImpactAcceleration

    450 G

  • MaximumVibrationalAcceleration

    2.5 G

Data set 03

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Plate resistance

    500000 ohm

    PromotedValue

  • Transconductance

    0.009 A/V

    PromotedValue

  • THE f;AH6;vA IS A HEATER—CATHODE TYPE H16HTRANSCONDUCTANCE, SHARP CUT—OFF — published value 1

    6

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • THE f;AH6;vA IS A HEATER—CATHODE TYPE H16HTRANSCONDUCTANCE, SHARP CUT—OFF — published value 2

    16

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • HEATER VOLTAGE (NOTE 7) — published value 1

    3 VOLTS

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • HEATER VOLTAGE (NOTE 7) — published value 2

    6.9 VOLTS

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE — published value 1

    300

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE — published value 2

    330

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #i VOLTAGE — published value 1

    0

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #i VOLTAGE — published value 2

    0

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 VOLTAGE — published value 1

    15

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 VOLTAGE — published value 2

    163

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #3 VOLTAGE — published value 1

    3

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #3 VOLTAGE — published value 2

    0

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE DISSIPATION — published value 1

    3

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE DISSIPATION — published value 2

    3.3

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 DISSIPATION — published value 1

    0.38

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 DISSIPATION — published value 2

    0.45

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • H EATER —CATHODE VOLTAGE — published value 1

    100

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • H EATER —CATHODE VOLTAGE — published value 2

    200

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • CATHODE CURRENT — published value 1

    12.5 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • CATHODE CURRENT — published value 2

    28 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • CATHODE RESISTANCE — published value 1

    16 OHMS

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • CATHODE RESISTANCE — published value 2

    16 OHMS

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE CURRENT (i) — published value 1

    1 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE CURRENT (i) — published value 2

    10 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 CURRENT — published value 1

    2 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • GRID #2 CURRENT — published value 2

    2.5 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • TRANSCONDUCTANCE (i)

    9000 µMHOS

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE RESISTANCE

    5

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • HEATER CURRENT — published value 1

    468

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • HEATER CURRENT — published value 2

    480

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE CURRENT (i) — published value 1

    10 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE CURRENT (i) — published value 2

    12.5 mAdc

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

  • PLATE CURRENT (2)

    2

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.

Other

  • Maximum plate voltage

    300 V

    PromotedValue

  • Maximum screen voltage

    200 V

    PromotedValue

  • Maximum plate dissipation

    3.5 W

    PromotedValue

  • Maximum screen dissipation

    0.75 W

    PromotedValue

  • Maximum cathode current

    25 mA

    PromotedValue

  • MAXIMUM BULB TEMPERATURE

    18

    OCR table transcription; verify against supplied datasheet layout where multiple columns represent operating conditions.