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Power - Triode (over 1000V 100W) ·Triode

LPT50

Machlett very-high-power directly heated triode for transmitting and RF power service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
13 V / 205 A

Description

Refer to Machliett price list. When ordering specify signed primarily to operate as a switch tube in Filament Voltage: 13.0 volts hard-tube puise modulators for radar and similar applications. In this service it can deliver pulse output in the order of 10 Mw, depending on cir- Filament Starting cuitry and performance requirements. Current, maximum: 800 amps The ML-LPT 50 is designed for operation in oil or Resistance: 0.0075 ohm

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
13 V
Nominal heater current
205 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

Triode

X-ray radiationInterelectrode capacitances
Amplification factor
135
Max plate voltage
125000 V
Max plate dissipation
10000 W

Promoted ratings/characteristics mapped from printed headings; device/service-specific values retained in parameters.

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

1971 Machlette Laboratories

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • The ML-LPT

    50

    The ML-LPT 50 is a high voltage, high mu triode de: ELECTRICAL CHARACTERISTICS

  • signed primarily to operate as a switch tube in Filament Voltage

    13 V

    signed primarily to operate as a switch tube in Filament Voltage: 13.0 volts

  • Filament Current

    205 A

    Filament Current: 205 amps

  • output in the order of

    10

    output in the order of 10 Mw, depending on cir- Filament Starting

  • cuitry and performance requirements. Current, maximum

    800 A

    cuitry and performance requirements. Current, maximum: 800 amps

  • The ML-LPT [1]

    50

    The ML-LPT 50 is designed for operation in oil or Resistance: 0.0075 ohm

  • The ML-LPT [2]

    0.0075

    The ML-LPT 50 is designed for operation in oil or Resistance: 0.0075 ohm

  • utilization of the maximum plate voltage ratings. Amplification Factor

    135 mA

    utilization of the maximum plate voltage ratings. Amplification Factor: 135

  • voltage. Where the tube is to be used in series with Grid-Plate

    25

    voltage. Where the tube is to be used in series with Grid-Plate: 25 pt

  • the rf load tube, where high stored energy is in- Grid-Filament

    80 pF

    the rf load tube, where high stored energy is in- Grid-Filament: 80 pf

  • volved, or where the frequency of kick-outs must Piate-Filament

    0.7 pF

    volved, or where the frequency of kick-outs must Piate-Filament: 0.7 pf

  • WARNING Oil Flow for

    10 kW

    WARNING Oil Flow for 10 kW

  • Plate Dissipation [1]

    30

    Plate Dissipation: 30 gal/min (114 i/min.) t

  • Plate Dissipation [2]

    114

    Plate Dissipation: 30 gal/min (114 i/min.) t

  • When operating at peak voltage in excess of

    15 mA

    When operating at peak voltage in excess of 15 kV, Maximum Bulk Oil

  • this electron tube may give off x-rays which can be Temperature [1]

    75 mA

    this electron tube may give off x-rays which can be Temperature: 75°C (167 °F)

  • this electron tube may give off x-rays which can be Temperature [2]

    167 mA

    this electron tube may give off x-rays which can be Temperature: 75°C (167 °F)

  • Standards Handbook [1]

    93 C

    Standards Handbook 93, “Safety Standard for Non- Dissipation: 75°C (167 °F)

  • Standards Handbook [2]

    75 C

    Standards Handbook 93, “Safety Standard for Non- Dissipation: 75°C (167 °F)

  • Standards Handbook [3]

    167 C

    Standards Handbook 93, “Safety Standard for Non- Dissipation: 75°C (167 °F)

  • Council on Radiation Protection and Measurements Temperature [1]

    165 C

    Council on Radiation Protection and Measurements Temperature: 165 °C (329°F)

  • Council on Radiation Protection and Measurements Temperature [2]

    329 C

    Council on Radiation Protection and Measurements Temperature: 165 °C (329°F)

  • Puise Modulator or Pulse Amplifier P,urt cmm:i/vr

    2 mA

    Puise Modulator or Pulse Amplifier P,urt cmm:i/vr 2 Mam.'f

  • DCPlateVoltage ...............covinnn

    125

    DCPlateVoltage ...............covinnn 125 kVi

  • Peak PlateVoltage

    125

    Peak PlateVoltage ...................... 125 kv

  • DCGridVoltage ............. ..o,

    -1500

    DCGridVoltage ............. ..o, -1500 Vv

  • Peak Negative Grid Voltage

    6000

    Peak Negative Grid Voltage. . . ............ - 6000 v

  • Pulse Cathode Current

    175

    Pulse Cathode Current .................. 175 a

  • Grid Dissipation

    1000

    Grid Dissipation . ........... ... ... .. . 1000 W

  • Plate Dissipation ............ ...,

    10 kW

    Plate Dissipation ............ ..., 10 kWit

  • Pulse Duration ............. ... . ... ...,

    1000

    Pulse Duration ............. ... . ... ..., 1000 us#

  • DutyFactor ............ i,

    1

    DutyFactor ............ i, 01 #

  • DC Plate Voltage

    110

    DCPlateVoltage ....................... 110 kV

  • DCGridVoltage ...............coiu

    1000

    DCGridVoltage ...............coiu.... - 1000 V

  • Pulse Positive Grid Voltage

    1000

    Pulse Positive Grid Voltage . .. ............ 1000 v

  • PulsePlateCurrent

    100

    PulsePlateCurrent ..................... 100 a

  • Pulse GridCurrent

    20

    Pulse GridCurrent ...................... 20 a

  • Pulse DrivingPower

    40 kW

    Pulse DrivingPower ..................... 40 kw

  • PuisePowerOQutput

    10

    PuisePowerOQutput ..................... 10 Mw

  • Pulsed Plate Output Voltage

    100

    Pulsed Plate Output Voltage .. ............ 100 kv

  • oil flow in ML oil jacket F

    543919

    oil flow in ML oil jacket F-543919