Skip to main content

Rectifier - Half Wave ·Rectifier

250A

Directly heated Eimac high-vacuum rectifier for high-voltage power supplies. Rated for approximately 30 kV peak inverse voltage and 75 mA nominal output for specialized transmitter and industrial equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UX4
Base pins
4
Nominal heater
5 V / 4 A

Description

The Eimac 2-50A is a high-vacuum rectifier for high-voltage power supplies, rated for approximately 75 mA average plate current and 30 kV peak inverse voltage.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UX4
Base pins
4
Nominal heater voltage
5 V
Nominal heater current
4 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
Max plate dissipation
30 W
Rectifier peak inverse voltage
30000 V
Rectifier nominal output current
75 mA
Rectifier peak forward current
1 A

Published per-tube maximum ratings promoted from the source.

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

1950 Eimac Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Average plate current

    75 mA

    Maximum average plate current from Eimac high-vacuum rectifier table.

  • Plate dissipation

    30 W

    Maximum plate dissipation from Eimac high-vacuum rectifier table.

  • Peak inverse voltage

    30000 V

    Maximum peak inverse voltage from Eimac high-vacuum rectifier table.

  • Filament voltage

    5 V

    Nominal filament voltage from Eimac high-vacuum rectifier table.

  • Filament current

    4 A

    Nominal filament current from Eimac high-vacuum rectifier table.

Data set 02

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Filament Voltage Range

    4.75 to 5.25 V

    For maximum tube life

Data set 03

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • mum peak inverse vol+age rating of

    30000

    mum peak inverse vol+age rating of 30,000 vol+s. Cooling is by convection and

  • cuit will deliver [1]

    150

    cuit will deliver 150 milliamperes at 19,000 volts +o a choke-input fil+er with

  • cuit will deliver [2]

    19000

    cuit will deliver 150 milliamperes at 19,000 volts +o a choke-input fil+er with

  • Current

    -4 A

    Current - -4.O amperes

  • Maximum Temperature of plate seal

    225

    Maximum Temperature of plate seal - - .----- 225OC

  • Recommended Heat Dissipating Plate Connector ----- Eimac HR

    3

    Recommended Heat Dissipating Plate Connector ----- Eimac HR-3

  • PEAK INVERSE PLATE VOLTAGE •

    30000 V

    PEAK INVERSE PLATE VOLTAGE • - 30,000 MAX. VOLTS

  • PLATE DISSIPATION

    30 W

    PLATE DISSIPATION - - 30 MAX. WATTS

  • D-C PLATE CURRENT]

    75 mA

    D-C PLATE CURRENT] . . 75 MAX. MA

  • PEAK PLATE CURRENT I

    0 mA

    PEAK PLATE CURRENT I.0 MAX. AMPERE

  • base ei+her down or up. The lead to the plate terminal of the Cooling-The [1]

    2

    base ei+her down or up. The lead to the plate terminal of the Cooling-The 2-50A is cooled by convection and radiation.

  • base ei+her down or up. The lead to the plate terminal of the Cooling-The [2]

    -50

    base ei+her down or up. The lead to the plate terminal of the Cooling-The 2-50A is cooled by convection and radiation.

  • Published value [1]

    224

    224. a National Co. No. XC-4 or CIR-4. or an equivalent socke+. pating Connector or equivalent is required on the plate terminal.

  • Published value [2]

    4

    224. a National Co. No. XC-4 or CIR-4. or an equivalent socke+. pating Connector or equivalent is required on the plate terminal.

  • Published value [3]

    4

    224. a National Co. No. XC-4 or CIR-4. or an equivalent socke+. pating Connector or equivalent is required on the plate terminal.

  • the Tempil Corpora+ion, [1]

    132 pF

    the Tempil Corpora+ion,132 W. 22nd St., Now York 11, N. Y. +he +o+al series resistance of the capacitor-charging circuit

  • the Tempil Corpora+ion, [2]

    22 pF

    the Tempil Corpora+ion,132 W. 22nd St., Now York 11, N. Y. +he +o+al series resistance of the capacitor-charging circuit

  • the Tempil Corpora+ion, [3]

    11 pF

    the Tempil Corpora+ion,132 W. 22nd St., Now York 11, N. Y. +he +o+al series resistance of the capacitor-charging circuit

  • The thoriated-tungs+en filament of the [1]

    2 A

    The thoriated-tungs+en filament of the 2-50A reaches op- rectifiers, lp is half the load current.

  • The thoriated-tungs+en filament of the [2]

    -50 A

    The thoriated-tungs+en filament of the 2-50A reaches op- rectifiers, lp is half the load current.

  • the [1]

    2 mA

    the 2-50A begins to show color as the maximum plate dissipa- upon +he d-c current per tube (I p ), and has been tabulated in

  • the [2]

    -50 mA

    the 2-50A begins to show color as the maximum plate dissipa- upon +he d-c current per tube (I p ), and has been tabulated in

  • tion rating of [1]

    30

    tion rating of 30 Vat+s is approached. The maximum peak inverse Fig. 2 as a percentage of the effective load resistance per tube

  • tion rating of [2]

    2

    tion rating of 30 Vat+s is approached. The maximum peak inverse Fig. 2 as a percentage of the effective load resistance per tube

  • voltage rating of

    30000 V

    voltage rating of 30,000 volts should not be exceeded at any

  • performance capabilities of the [1]

    2 W

    performance capabilities of the 2-50A when used as a power-

  • performance capabilities of the [2]

    -50 W

    performance capabilities of the 2-50A when used as a power-

  • supply rectifier. Rp is +he plate resis+ance of the [1]

    2

    supply rectifier. Rp is +he plate resis+ance of the 2-50A. which may be

  • supply rectifier. Rp is +he plate resis+ance of the [2]

    -50

    supply rectifier. Rp is +he plate resis+ance of the 2-50A. which may be

  • peak current usually limits the d-c current which +he [1]

    2 A

    peak current usually limits the d-c current which +he 2-50A capabili+y in a given circuit. When two tubes are placed in

  • peak current usually limits the d-c current which +he [2]

    -50 A

    peak current usually limits the d-c current which +he 2-50A capabili+y in a given circuit. When two tubes are placed in

  • tion associated with a given d-c current depends upon the

    2 mA

    tion associated with a given d-c current depends upon the 2, the plate resistance (Rp) will be half as grea+ and the maxi-

  • Clloke-Input lil.er-The maximum d-c current rating of the +he [1]

    2 mA

    Clloke-Input lil.er-The maximum d-c current rating of the +he 2-50A is 30,000 volts. In single-phase power-supply rectifier

  • Clloke-Input lil.er-The maximum d-c current rating of the +he [2]

    -50 mA

    Clloke-Input lil.er-The maximum d-c current rating of the +he 2-50A is 30,000 volts. In single-phase power-supply rectifier

  • Clloke-Input lil.er-The maximum d-c current rating of the +he [3]

    30000 mA

    Clloke-Input lil.er-The maximum d-c current rating of the +he 2-50A is 30,000 volts. In single-phase power-supply rectifier

  • Published value [1]

    2 V

    2-50A is 75 milliamperes when the load incorporates a choke- circuits the peak inverse voltage to be used in design is the

  • Published value [2]

    -50 V

    2-50A is 75 milliamperes when the load incorporates a choke- circuits the peak inverse voltage to be used in design is the

  • Published value [3]

    75 V

    2-50A is 75 milliamperes when the load incorporates a choke- circuits the peak inverse voltage to be used in design is the

  • peak a-c supply voltage (I [1]

    41 V

    peak a-c supply voltage (I.41 +imes Erms in Fig. 2) in the case

  • peak a-c supply voltage (I [2]

    2 V

    peak a-c supply voltage (I.41 +imes Erms in Fig. 2) in the case

  • Lo =

    6 pF

    Lo =6# for full-wave three-pllase rectifiers, filter circuits assume values of input capacitance large enough

  • the [1]

    2 A

    the 2-50A is capable of larger d-c output currents.

  • the [2]

    -50 A

    the 2-50A is capable of larger d-c output currents.

  • Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the [1]

    2 mA

    Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the 2-50A is 145 milliamperes.

  • Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the [2]

    -50 mA

    Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the 2-50A is 145 milliamperes.

  • Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the [3]

    145 mA

    Cho[e-inpu+ fil+ers are not normally used with single-phase maximum current rating of the 2-50A is 145 milliamperes.

  • The plate characteristic curve for the [1]

    2

    The plate characteristic curve for the 2-50A serves as a

  • The plate characteristic curve for the [2]

    -50

    The plate characteristic curve for the 2-50A serves as a

  • Capaci.®r.Inpul Filter-The [1]

    2 W

    Capaci.®r.Inpul Filter-The 2-50A is particularly suitable for guide to special applications. The maximum plate dissipation

  • Capaci.®r.Inpul Filter-The [2]

    -50 W

    Capaci.®r.Inpul Filter-The 2-50A is particularly suitable for guide to special applications. The maximum plate dissipation

  • power-supply applications demanding high voltage at low cur- rating of

    30 V

    power-supply applications demanding high voltage at low cur- rating of 30 watts, the maximum peak inverse voltage rating of

  • ren+. Under +hese conditions capacitor-inpu+ filter circuits [1]

    30000 mA

    ren+. Under +hese conditions capacitor-inpu+ filter circuits 30,000 volts, and the maximum peal plate current of I.0 ampere

  • ren+. Under +hese conditions capacitor-inpu+ filter circuits [2]

    0 mA

    ren+. Under +hese conditions capacitor-inpu+ filter circuits 30,000 volts, and the maximum peal plate current of I.0 ampere

  • become desirable. The maximum d-c current ra+ing of the [1]

    2 mA

    become desirable. The maximum d-c current ra+ing of the 2-50A must not be exceeded.

  • become desirable. The maximum d-c current ra+ing of the [2]

    -50 mA

    become desirable. The maximum d-c current ra+ing of the 2-50A must not be exceeded.

  • Eimac [1]

    2 mA

    Eimac 2-50A Maxium D-C Current Ratings for R-C Fil+er Applications

  • Eimac [2]

    -50 mA

    Eimac 2-50A Maxium D-C Current Ratings for R-C Fil+er Applications