6SN7WGT

Rugged medium-mu double triode designed for voltage-amplifier and phase-inverter service in equipment subject to severe shock and vibration.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 8BD
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 600 mA

Description

Rugged medium-mu double triode for voltage-amplifier or phase-inverter service under severe shock and vibration.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8BD
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 600 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8BD - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN12G1	B	G1 — Control Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN22P	B	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN32K	B	K — Cathode EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN41G1	A	G1 — Control Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN51P	A	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN61K	A	K — Cathode EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN7H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD
PIN8H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8BD

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 7700 Ω
Transconductance: 0.0026 S
Amplification factor: 20
Max plate voltage: 300 V
Max cathode current: 20 mA

Published maximum ratings and representative operating characteristics reviewed.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 7700 Ω
Transconductance: 0.0026 S
Amplification factor: 20
Max plate voltage: 300 V
Max cathode current: 20 mA

Second identical physical triode section; added to align rows with SectionCount.

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

Triode

Other

Heater Voltage (ac or dc) 6.3
12.6 V
Heater Voltage (ac or dc) 6.3 12.6 volts
Heater Current 0.6
300 mA
Heater Current 0.6 0.3 amps.
DC Component 100
100 V
DC Component 100 100 volts
Total DC and Peak 200
200 V
Total DC and Peak 200 200 volts BOTTOM VIEW
Total DC and Peak 200
200 V
Total DC and Peak 200 200 volts
Plate Voltage
300 V
Plate Voltage 300 volts
Each Plate
3.5 W
Each Plate 3.5 watts
Both Plates
5 W
Both Plates 5.0 watts
DC Cathode Current
20 mA
DC Cathode Current 20 ma.
Plate Voltage 90
250 V
Plate Voltage 90 250 volts
Grid Voltage
0 V
Grid Voltage 0 -8.0 volts
Transconductance 3000
2600 µS
Transconductance 3000 2600 pmhos
Plate Resistance (approx.) 6700
7700 Ω
Plate Resistance (approx.) 6700 7700 ohms
Plate Current ) 10
9 mA
Plate Current ) 10 9 ma.
Grid Voltage {approx.) for 1b=10 pa
-7 V
Grid Voltage {approx.) for 1b=10 pa. -7.0 -18 volts

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum plate voltage
300 V
Published handbook rating
Plate voltage
250 V
ClassA OperatingPoint1
Control-grid bias
8 V
ClassA OperatingPoint1
Plate current
9 mA
ClassA OperatingPoint1
Plate voltage
90 V
ClassA OperatingPoint2
Control-grid bias
0 V
ClassA OperatingPoint2
Plate current
10 mA
ClassA OperatingPoint2

Characteristic

Plate resistance
7700 ohm
ClassA OperatingPoint1
Transconductance
2600 µS
ClassA OperatingPoint1
Amplification factor
20
ClassA OperatingPoint1
Plate resistance
6700 ohm
ClassA OperatingPoint2
Transconductance
3000 µS
ClassA OperatingPoint2
Amplification factor
20
ClassA OperatingPoint2
Heater voltage
6.3 V
Published heater rating
Heater current
600 mA
Published heater rating

Data set 03

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
250 V
VoltageAmplifier;EachSection
Control-grid voltage
-8 V
VoltageAmplifier;EachSection
Plate current
9 mA
VoltageAmplifier;EachSection

Characteristic

Amplification factor
20
EachSection
Transconductance
2600 µS
EachSection