6111WA

Ruggedized subminiature twin triode for UHF amplifier service, designed to withstand high shock, vibration, and acceleration while providing compact high-frequency amplification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: SUBMINIATURE8
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

The 6111WA is a heater-cathode medium-mu subminiature twin triode capable of UHF-region operation and designed for severe high-temperature, mechanical-shock and vibration environments.

Socket description

Subminiature 8-lead base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: SUBMINIATURE8
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 4000 Ω
Transconductance: 0.00465 S
Amplification factor: 20
Max plate voltage: 250 V
Max plate dissipation: 0.95 W
Max cathode current: 22 mA
Rectifier max heater-cathode voltage: 200 V

Representative row for electrically identical repeated sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 4000 Ω
Transconductance: 0.00465 S
Amplification factor: 20
Max plate voltage: 250 V
Max plate dissipation: 0.95 W
Max cathode current: 22 mA

Second physical triode restored under current one-row-per-physical-section policy.

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

Characteristics

Heater or filament voltage
6.3 V
Published nominal value
Heater or filament current
300 mA
Published nominal or representative value
Transconductance
5000 µS
Published characteristic

Other

Maximum plate dissipation
0.95 W
Published maximum rating

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

ImpactAcceleration
450 g
UniformAcceleration
1000 g
VibrationalAcceleration
2.5 g
Service
UHF amplifier

Data set 03

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Grid-to-plate capacitance nominal
1.5 pF
WholeTube
Input capacitance nominal
1.9 pF
WholeTube
Output capacitance section 1 nominal
0.28 pF
WholeTube
Output capacitance section 2 nominal
0.32 pF
WholeTube
Grid-to-grid capacitance maximum
0.011 pF
WholeTube
Plate-to-plate capacitance maximum
0.5 pF
WholeTube

Other

Maximum plate voltage
250 V
WholeTube
Maximum peak plate voltage
360 V
WholeTube
Maximum negative grid 1 voltage
55 V
WholeTube
Maximum plate dissipation per plate
0.95 W
WholeTube
Maximum plate current per plate
22 mA
WholeTube
Maximum grid current per grid
5.5 mA
WholeTube
Maximum heater-cathode voltage
200 V
WholeTube
Plate voltage
100 V
NormalOperation
Cathode resistance
220 ohm
NormalOperation
Plate current per plate
8.5 mA
NormalOperation
Transconductance per plate
5000 uS
NormalOperation
Amplification factor
20
NormalOperation
Maximum impact acceleration
450 G
Mechanical
Maximum uniform acceleration
1000 G
Mechanical
Maximum bulb temperature
220 C
Mechanical