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Power - Tetrode (NOT beam) ·Tetrode

TH289MA

Thomson-CSF transmitting tetrode designed especially for high-power radio-frequency amplifier service. Its construction supports substantial professional RF output in transmitter equipment.

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

Description

The TH289MA is a transmitting tetrode especially intended for high-power radio-frequency amplifier service.

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
-
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

Tetrode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published electrical data audited and 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

Tetrode

Other

  • Filament voltage ( [1]

    1 V

    Filament voltage (1) ..« o ovvvon om 38 A

  • Filament voltage ( [2]

    38 V

    Filament voltage (1) ..« o ovvvon om 38 A

  • Filament current, approxima und ed cathode (

    2 A

    Filament current, approxima und ed cathode (2) :

  • Interelectrode capacitances

    40 pF

    Interelectrode capacitances 40

  • _ control grid-anode ed grid (

    2

    _ control grid-anode ed grid (2) :

  • Interelectrode capacitances

    17 pF

    Interelectrode capacitances 17 pF

  • _ cathodeanode ....eeeesess et

    5.5

    _ cathodeanode ....eeeesess et 5.5

  • Transconductance {la =

    1

    Transconductance {la =1 Al

  • anode diss ipat ion =

    2.5

    anode diss ipat ion = 2.5

  • Published value [1]

    50

    50 x 50 cm® metallic plate around grid

  • Published value [2]

    50

    50 x 50 cm® metallic plate around grid

  • FREQUENCY MODULATION RF POWER AMPLIFIER AT

    110 MHz

    FREQUENCY MODULATION RF POWER AMPLIFIER AT 110 MHz

  • DCGrid n® [1]

    2 V

    DCGrid n® 2voltage . ..o oo ve et 600 \

  • DCGrid n® [2]

    600 V

    DCGrid n® 2voltage . ..o oo ve et 600 \

  • DCgrid n® [1]

    1

    DCgrid n® 1volagE .« oo ot e e e et e —300 Y

  • DCgrid n® [2]

    -300

    DCgrid n® 1volagE .« oo ot e e e et e —300 Y

  • Peak cathodecurrent

    7.5 A

    Peak cathodecurrent .. ............... .. ... 7.5 A

  • DCanode CUFrent . . . i ittt

    1.3

    DCanode CUFrent . . . i ittt 1.3 A

  • Anode dissipation ... ... ... ... ... ., e

    3 kW

    Anode dissipation ... ... ... ... ... ., e 3.0 kw

  • Grid n° [1]

    2 W

    Grid n° 2. diSSIPAtION « + « e« v e 60 W

  • Grid n° [2]

    60 W

    Grid n° 2. diSSIPAtION « + « e« v e 60 W

  • Grid n° [1]

    1 W

    Grid n° 1 dissipation ... ... ... 20 W

  • Grid n° [2]

    20 W

    Grid n° 1 dissipation ... ... ... 20 W

  • DCgridn® [1]

    2 V

    DCgridn® 2voltage . ... ..o it 600 \%

  • DCgridn® [2]

    600 V

    DCgridn® 2voltage . ... ..o it 600 \%

  • DCgridn® [1]

    1 V

    DCgridn® 1voltage ........ e -180 V

  • DCgridn® [2]

    -180 V

    DCgridn® 1voltage ........ e -180 V

  • Grid n® [1]

    1 V

    Grid n® 1 peak RF voltage . ...........cuvvurenunn. 250 v

  • Grid n® [2]

    250 V

    Grid n® 1 peak RF voltage . ...........cuvvurenunn. 250 v

  • DCanodecurrent . .. .. .. ... ...t

    1.1 A

    DCanodecurrent . .. .. .. ... ...t 1.1 A

  • DC grid n® [1]

    2 A

    DC grid n® 2 current, approxXimate . . ... ... .......un... 70 mA

  • DC grid n® [2]

    70 A

    DC grid n® 2 current, approxXimate . . ... ... .......un... 70 mA

  • DC grid n° [1]

    1 A

    DC grid n° 1 current, approxXimate . ... ............o.... 50 mA

  • DC grid n° [2]

    50 A

    DC grid n° 1 current, approxXimate . ... ............o.... 50 mA

  • Input power L e e e

    5 kW

    Input power L e e e 5.0 kW

  • Output power, approximate ( [1]

    1 kW

    Output power, approximate (1) . ........ ..o ... 3.5 kW

  • Output power, approximate ( [2]

    3.5 kW

    Output power, approximate (1) . ........ ..o ... 3.5 kW

  • Published value [1]

    1 V

    1 - The nominal value 5.6 V of the TH 289MA heater voltage given in Specific Data Sheet corresponds appro-

  • Published value [2]

    5.6 V

    1 - The nominal value 5.6 V of the TH 289MA heater voltage given in Specific Data Sheet corresponds appro-

  • Published value [3]

    289 V

    1 - The nominal value 5.6 V of the TH 289MA heater voltage given in Specific Data Sheet corresponds appro-

  • ximately to a value of

    5.8 pF

    ximately to a value of 5.8 V measured on heater by-pass capacitors at the entrance of the box.

  • Published value [1]

    2 V

    2 - The heater voltage should be measured by using an accurate ferro-magnetic voltmeter (accuracy = 1.5 %).

  • Published value [2]

    1.5 V

    2 - The heater voltage should be measured by using an accurate ferro-magnetic voltmeter (accuracy = 1.5 %).

  • Published value [1]

    3 V

    3 - Theheater voltage adjustment has great influence over the tube life. The nominal value of5.6 V is an optimum

  • Published value [2]

    6 V

    3 - Theheater voltage adjustment has great influence over the tube life. The nominal value of5.6 V is an optimum

  • Grid g2 voltage =

    600 V

    Grid g2 voltage = 600 V

  • > pad

    40

    > pad 40° ( temperature

  • Grid

    2

    Grid 2

  • Filament-cathode Grid

    1

    Filament-cathode Grid 1

  • Grid

    1

    Grid 1

  • Tensionde filament ( [1]

    1 V

    Tensionde filament (1) ... .. ... .. .. . . 5,612 % \

  • Tensionde filament ( [2]

    5612 V

    Tensionde filament (1) ... .. ... .. .. . . 5,612 % \

  • Courant filament, approX. . .. .. ..ttt it e,

    38 A

    Courant filament, approX. . .. .. ..ttt it e, 38 A

  • Capacités interélectrodes approximatives avec cathode [1]

    3 pF

    Capacités interélectrodes approximatives avec cathode 3 la masse (2) :

  • Capacités interélectrodes approximatives avec cathode [2]

    2 pF

    Capacités interélectrodes approximatives avec cathode 3 la masse (2) :

  • grille g1-anode

    2

    - grille g1-anode ................................. 0,2 pF

  • Capacités interélectrodes approximatives avec grille [1]

    3 pF

    Capacités interélectrodes approximatives avec grille 3 la masse (2) :

  • Capacités interélectrodes approximatives avec grille [2]

    2 pF

    Capacités interélectrodes approximatives avec grille 3 la masse (2) :

  • cathode-anode

    3

    -cathode-anode . .. .. ... ... 0,03 pF

  • Pente (pour uncourant d’anodede T A) ™

    20 A

    Pente (pour uncourant d’anodede T A) ™ ... ... ............... 20 mA/V

  • dissipation d’anode = [1]

    2 kW

    dissipation d’anode =2, 5kW) ............ 4,5 m?/mn

  • dissipation d’anode = [2]

    5 kW

    dissipation d’anode =2, 5kW) ............ 4,5 m?/mn

  • dissipation d’anode = [3]

    45 kW

    dissipation d’anode =2, 5kW) ............ 4,5 m?/mn

  • montage normal (anodeenbas)

    5

    - montage normal (anodeenbas) ...................... 5 mB

  • AMPLIFICATEUR H.F. DE PUISSANCE - MODULATION DE FREQUENCE A

    110 MHz

    AMPLIFICATEUR H.F. DE PUISSANCE - MODULATION DE FREQUENCE A 110 MHz

  • Tension continue de grille

    92 V

    Tension continue de grille 92 ..................................

  • Courant continu de grille

    92 A

    Courant continu de grille 92, approx. mA

  • Puissance de sortie, approx. (

    1 kW

    Puissance de sortie, approx. (1) . .. .. .. i i i e kW

  • La valeur nominale de la tension de chauffage du tube TH [1]

    289 V

    La valeur nominale de la tension de chauffage du tube TH 289 MA fixée 4 5,6 V dans la notice, correspond

  • La valeur nominale de la tension de chauffage du tube TH [2]

    4 V

    La valeur nominale de la tension de chauffage du tube TH 289 MA fixée 4 5,6 V dans la notice, correspond

  • La valeur nominale de la tension de chauffage du tube TH [3]

    56 V

    La valeur nominale de la tension de chauffage du tube TH 289 MA fixée 4 5,6 V dans la notice, correspond

  • approximativement a une tension de [1]

    58 V

    approximativement a une tension de 5,8 V mesurée sur les condensateurs de traversée découplage filament 3

  • approximativement a une tension de [2]

    3 V

    approximativement a une tension de 5,8 V mesurée sur les condensateurs de traversée découplage filament 3

  • Published value

    56 W

    5,6 V est une valeur optimale assurant pour tous les tubes un compromis entre la puissance de sortie et une

  • TENSION GRILLE g2 =

    600 V

    TENSION GRILLE g2 = 600V

  • anode en bas avec support TH

    16044

    anode en bas avec support TH 16044

  • FILAMENT - CATHODE [1]

    10

    FILAMENT - CATHODE 10 I | GRILLE 1

  • FILAMENT - CATHODE [2]

    1

    FILAMENT - CATHODE 10 I | GRILLE 1