Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Voltage Pentode ·Pentode

6SJ7WGT

Ruggedized pentode for dependable RF and audio-frequency amplification in military, industrial, and other demanding electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9L
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

Rugged pentode for RF and AF amplifier service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9L
Socket code
IO
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9L - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1PAP — Plate (Anode)

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN3G3AG3 — Suppressor Grid

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN4F—F — Filament

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN5F—F — Filament

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN6G2AG2 — Screen Grid

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN7G1AG1 — Control Grid

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN8G3AG3 — Suppressor Grid

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

PIN9FCT—FCT — Filament Center Tap

EIA transcription; manufacturer verification pending

Unverified

EIA Base Connections, printed page 130, 9L

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
1000000 Ω
Transconductance
0.00165 S
Max plate voltage
250 V
Max screen voltage
100 V

Promoted only from clearly identified printed ratings/characteristics; additional operating and limiting values retained in TUBE_SECTION_PARAMETER.

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

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    250 V

    RFAFAmplifier

  • Control-grid voltage

    -3 V

    RFAFAmplifier

  • Screen voltage

    100 V

    RFAFAmplifier

  • Suppressor-grid voltage

    0 V

    RFAFAmplifier

  • Plate current

    3 mA

    RFAFAmplifier

  • Screen current

    0.8 mA

    RFAFAmplifier

Characteristic

  • Plate resistance minimum

    1 MΩ

    Section1

  • Transconductance

    1650 µS

    Section1