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6895

Mercury-vapor high-voltage half-wave power rectifier corresponding electrically to the 6894 with different basing. Its heavy filament provides multiampere industrial rectification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: JUMBO4B
Base pins: -
Nominal heater: 5 V / 10 A

Description

6895 companion mercury-vapor high-voltage power rectifier; differs from 6894 only in basing/socketry.

Socket description

Super Jumbo 4-pin bayonet

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: JUMBO4B
Base pins: -
Nominal heater voltage: 5 V
Nominal heater current: 10 A
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

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 20000 V
Rectifier nominal output current: 2.5 A
Rectifier peak forward current: 5 A
Rectifier warm-up time: 30 s

Promoted fields populated from published ratings/characteristics; additional published 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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Filament Current
9 A to 11 A
Anode Starting Voltage Approximate
20 V

Other

Peak Inverse Anode Voltage
20 kV
CondensedMercury=20-50C
Peak Inverse Anode Voltage
15 kV
CondensedMercury=20-55C
Peak Inverse Anode Voltage
10 kV
CondensedMercury=20-60C
Peak Anode Current
5 A
QuadratureFilamentExcitation
Peak Anode Current
3 A
InPhaseFilamentExcitation
Average Anode Current
2.5 A
QuadratureFilamentExcitation
Average Anode Current
1.8 A
InPhaseFilamentExcitation
Maximum AC Short Circuit Current
100 A
Duration<=100ms

Data set 02

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Filament Current Range
9 A to 11 A

Other

Filament Heating Time
30 s
Anode Starting Voltage
20 V
Peak Inverse Voltage at 20-50C
20000 V
Peak Inverse Voltage at 20-55C
15000 V
Peak Inverse Voltage at 20-60C
10000 V
Peak Anode Current Quadrature
11.5 A
Peak Anode Current InPhase
8.3 A
Average Anode Current Quadrature
2.5 A
Average Anode Current InPhase
1.8 A
AC Short Circuit Current Maximum
100 A

Data set 03

1975 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Filament Current Range
9 A to 11 A

Other

Anode Starting Voltage
20 V
Peak Inverse Voltage at 20-50C
20000 V
Peak Inverse Voltage at 20-55C
15000 V
Peak Inverse Voltage at 20-60C
10000 V
Peak Anode Current Quadrature
11.5 A
Peak Anode Current InPhase
8.3 A
Average Anode Current Quadrature
2.5 A
Average Anode Current InPhase
1.8 A
AC Short Circuit Current Maximum
100 A

Data set 04

1976 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Filament Current Range
9 A to 11 A

Other

Anode Starting Voltage
20 V
Peak Inverse Voltage at 20-50C
20000 V
Peak Inverse Voltage at 20-55C
15000 V
Peak Inverse Voltage at 20-60C
10000 V
Peak Anode Current Quadrature
11.5 A
Peak Anode Current InPhase
8.3 A
Average Anode Current Quadrature
2.5 A
Average Anode Current InPhase
1.8 A
AC Short Circuit Current Maximum
100 A