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

TH591

Ceramic-metal pulse power triode for operation to approximately 500 MHz. Very high peak RF output, tens of kilowatts of plate dissipation, and high-voltage capability suit demanding pulsed UHF systems.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

The TH591 is a ceramic-metal triode designed for pulse operation at frequencies up to 500 MHz. It can deliver very high peak output power and uses vapor cooling coupled to a distilled-water circuit.

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
-
Nominal heater current
190 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
Transconductance
0.13 S
Amplification factor
60
Max plate voltage
18000 V
Max plate dissipation
60000 W
Max grid dissipation
350 W
Max cathode current
120 A

Published ratings/characteristics audited; detailed numeric data retained in parameter table.

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

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • pulse operation at frequency up to

    500 MHz

    pulse operation at frequency up to 500 MHz. It can deliver

  • Published value

    190 kW

    190 kW peak output power into the load. When used with

  • temperature of

    100

    temperature of 100 °C.

  • Filamentcurrent . . .. ... ... ... ... it i

    190 A

    Filamentcurrent . . .. ... ... ... ... it i 190 A

  • Maximum surge CUrrent . .. . . ... ...ttt i e e

    500 A

    Maximum surge CUrrent . .. . . ... ...ttt i e e 500 A

  • cathode-grid {(cold)

    100

    -cathode-grid {(cold) . ... ..... .. ... .. ... ... 100 pF

  • gridanode ..............e

    17

    -gridanode ..............e 17 pF

  • Transconductance . ... ... ..ttt ittt e et

    130

    Transconductance . ... ... ..ttt ittt e et . 130 mA/V

  • Maximum temperature of envelope and electrode terminals

    150

    Maximum temperature of envelope and electrode terminals . ....... 150 °Cc

  • D.C. anode voltage . . e e e

    18 V

    D.C. anode voltage . . e e e 18 kV

  • D.C.gridvoltage ..........c.. ittt ieiniinnennnennnas

    1000 V

    D.C.gridvoltage ..........c.. ittt ieiniinnennnennnas 1000 Vv

  • Peak cathode current .. ... .. ... ..ttt

    120 A

    Peak cathode current .. ... .. ... ..ttt 120 A

  • Anode dissipation ... .................. T

    60 kW

    Anode dissipation ... .................. T 60. kW

  • Grid dissipation . .. ... ... .. e

    350 W

    Grid dissipation . .. ... ... .. e 350 w

  • FrequenCy .. ... .o iiiiiieit ettt

    500 MHz

    FrequenCy .. ... .o iiiiiieit ettt 500 MHz

  • D.C.anode voltage . .............ciiieuimnunnennneens

    15 V

    D.C.anode voltage . .............ciiieuimnunnennneens 15 kV

  • D.C.gridvoltage ............. ...t

    -260 V

    D.C.gridvoltage ............. ...t —260 \'

  • D.C. anode current during pulse

    20 A

    D.C. anode current during pulse . ... ...... ... . ... . . 20 A

  • D.C. grid current duringpulse

    7 A

    D.C. grid current duringpulse .. ......... .. ... ... 7 A

  • Peak input power ... .. ... ... e

    300 kW

    Peak input power ... .. ... ... e 300 kW

  • Peak output power{ [1]

    1 kW

    Peak output power{1) . . . . ... . ... ... .. e 190 kW

  • Peak output power{ [2]

    190 kW

    Peak output power{1) . . . . ... . ... ... .. e 190 kW

  • Average dissipation power . ... ... .. ... i

    20 kW

    Average dissipation power . ... ... .. ... i 20 kW

  • Pulse duration . ... ...t ittt e e e e,

    4

    Pulse duration . ... ...t ittt e e e e, 4 ms

  • Operating freQUENCY . .. .. .ttt it ittt s e e e

    450 MHz

    Operating freQUENCY . .. .. .ttt it ittt s e e e 450 MHz

  • (

    1 W

    (1) Useful power at tube output.

  • D.C.anodevoltage .............cuiinnernennonnnnnnenn

    13 V

    D.C.anodevoltage .............cuiinnernennonnnnnnenn 13 kV

  • DC.gridvoltage [1]

    0 V

    DC.gridvoltage . ............00iiiuiievinncnnnnennns —-250 \'}

  • DC.gridvoltage [2]

    -250 V

    DC.gridvoltage . ............00iiiuiievinncnnnnennns —-250 \'}

  • Peak driving power . . ... ... .. ...t i

    16 kW

    Peak driving power . . ... ... .. ...t i 16 kW

  • Peak outputpower { [1]

    2 kW

    Peak outputpower {2) . . . . ... ... .. e 135 kW

  • Peak outputpower { [2]

    135 kW

    Peak outputpower {2) . . . . ... ... .. e 135 kW

  • Average dissipation power .. ... ... .. e it

    45 kW

    Average dissipation power .. ... ... .. e it 45 kW

  • Pulse duration .. ... .. ... ..ttti e

    4

    Pulse duration .. ... .. ... ..ttti e 4 ms

  • (

    2 W

    (2) Useful power at tube output.

  • Published value

    75.1

    75.1 ANODE

  • GRID— T oy

    12

    GRID— T oy 12

  • FILAMENT-CATHODE // f ¢| [1]

    3

    FILAMENT-CATHODE // f ¢|3I9.3-38.7

  • FILAMENT-CATHODE // f ¢| [2]

    3

    FILAMENT-CATHODE // f ¢|3I9.3-38.7

  • FILAMENT-CATHODE // f ¢| [3]

    -38.7

    FILAMENT-CATHODE // f ¢|3I9.3-38.7