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

GU68A

Water-cooled metal-ceramic power triode for stationary RF transmitter amplifiers to approximately 30 MHz. Its carbonized thoriated-tungsten cathode supports about 130 kW plate dissipation and 12 kV plate operation.

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

Description

The GU-68A triode is used as a power amplifier at frequencies up to 30 MHz in stationary RF transmitters. It has a directly heated carbonized thoriated-tungsten cathode and water-cooled anode.

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
20 V
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

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
12000 V
Max plate dissipation
130000 W
Max grid dissipation
2300 W

Promoted-field audit performed from English ratings/characteristics; detailed electrical values retained in parameter table. REDO promoted-field audit completed from English Limit Operating Values / Electrical Parameters tables.

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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • power amplification at [1]

    68 W

    leHepaTopHbin Tprog MNY-68A npepgHasHadeH Ans The I'Y-68A triode is used for power amplification at

  • power amplification at [2]

    68 W

    leHepaTopHbin Tprog MNY-68A npepgHasHadeH Ans The I'Y-68A triode is used for power amplification at

  • anode [1]

    24

    Mass: at most 24 kg. M @G0+ 15 A -anode

  • anode [2]

    15

    Mass: at most 24 kg. M @G0+ 15 A -anode

  • temperature,°C [1]

    -10 C

    TemnepaTypa okpyxatouen cpeas!, °C . .......... -10—-+55 Ambient temperature,°C ...................... —10t0 +55

  • temperature,°C [2]

    55 C

    TemnepaTypa okpyxatouen cpeas!, °C . .......... -10—-+55 Ambient temperature,°C ...................... —10t0 +55

  • temperature,°C [3]

    -10 C

    TemnepaTypa okpyxatouen cpeas!, °C . .......... -10—-+55 Ambient temperature,°C ...................... —10t0 +55

  • temperature,°C [4]

    55 C

    TemnepaTypa okpyxatouen cpeas!, °C . .......... -10—-+55 Ambient temperature,°C ...................... —10t0 +55

  • voltage

    1 uS

    KpyTusHa xapakTepucTuku (Npy HanpshkeHun Mutual conductance (at anode voltage 1 kV,

  • currents [1]

    1 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • currents [2]

    10 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • currents [3]

    10 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • currents [4]

    14 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • currents [5]

    115 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • currents [6]

    -145 mA

    aHoga 1 kB, Tokax aHopa 10m anode currents 10and 14 A), mA/V .............. 115-145

  • anode voitage [1]

    14

    14A),MAB . ... . . 115-145 Gain coefficient (at anode voitage 1 and

  • anode voitage [2]

    115

    14A),MAB . ... . . 115-145 Gain coefficient (at anode voitage 1 and

  • anode voitage [3]

    -145

    14A),MAB . ... . . 115-145 Gain coefficient (at anode voitage 1 and

  • anode voitage [4]

    1

    14A),MAB . ... . . 115-145 Gain coefficient (at anode voitage 1 and

  • grid [1]

    1 A

    aHoga 1 n2 kB, Tokeanoga 10A) .. ............. 30-38 Anode current (at anode voltage 0.3 kV, grid

  • grid [2]

    10 A

    aHoga 1 n2 kB, Tokeanoga 10A) .. ............. 30-38 Anode current (at anode voltage 0.3 kV, grid

  • grid [3]

    30 A

    aHoga 1 n2 kB, Tokeanoga 10A) .. ............. 30-38 Anode current (at anode voltage 0.3 kV, grid

  • grid [4]

    -38 A

    aHoga 1 n2 kB, Tokeanoga 10A) .. ............. 30-38 Anode current (at anode voltage 0.3 kV, grid

  • grid [5]

    300 mA

    aHoga 1 n2 kB, Tokeanoga 10A) .. ............. 30-38 Anode current (at anode voltage 0.3 kV, grid

  • voltage [1]

    3 V

    Tok aHoga (Npy HanpskeHusx aHoaa 0,3 kB, voltage 100 V), A, atleast . .. ................... 8

  • voltage [2]

    100 V

    Tok aHoga (Npy HanpskeHusx aHoaa 0,3 kB, voltage 100 V), A, atleast . .. ................... 8

  • voltage [3]

    8 V

    Tok aHoga (Npy HanpskeHusx aHoaa 0,3 kB, voltage 100 V), A, atleast . .. ................... 8

  • anode [1]

    100 kV

    ceTkn 100 B), A,HemMeHee . .................... 8 Negative cutoff voltage (at anode voltage 10 kV, anode

  • anode [2]

    8 kV

    ceTkn 100 B), A,HemMeHee . .................... 8 Negative cutoff voltage (at anode voltage 10 kV, anode

  • anode [3]

    10 kV

    ceTkn 100 B), A,HemMeHee . .................... 8 Negative cutoff voltage (at anode voltage 10 kV, anode

  • current [1]

    100 mA

    HanpsipkeHune sanupaHus oTpuyaTensHoe (npu current 0.1 A), absolute value, V,atmost . ......... 400

  • current [2]

    400 A

    HanpsipkeHune sanupaHus oTpuyaTensHoe (npu current 0.1 A), absolute value, V,atmost . ......... 400

  • Interelectrode capacitance, pF [1]

    10 pF

    HanpsbxeHun aHoaa 10 kKB, Toke aHona 0,1 A), Interelectrode capacitance, pF:

  • Interelectrode capacitance, pF [2]

    1 pF

    HanpsbxeHun aHoaa 10 kKB, Toke aHona 0,1 A), Interelectrode capacitance, pF:

  • input,atmost [1]

    3

    abconoTHoe 3HayeHwe, B,He Gonee . ... ...... ... 400 input,atmost ..........

  • input,atmost [2]

    400

    abconoTHoe 3HayeHwe, B,He Gonee . ... ...... ... 400 input,atmost ..........

  • output,atmost

    6

    MexxaneKTpogHbie emkocTu, nd, He 6ornee: output,atmost ..........

  • voltage (ACorDC),V [1]

    19 V

    HanpsixeHue Hakana (nepeMeHHoe unm Filament voltage (ACorDC),V ................. 19-21

  • voltage (ACorDC),V [2]

    -21 V

    HanpsixeHue Hakana (nepeMeHHoe unm Filament voltage (ACorDC),V ................. 19-21

  • voltage (DC), kV [1]

    19 kV

    nocTosHHOE), B . .. ... ... ... ... 19-21 Anode voltage (DC), kV ....... ... ... ... ...... 12

  • voltage (DC), kV [2]

    -21 kV

    nocTosHHOE), B . .. ... ... ... ... 19-21 Anode voltage (DC), kV ....... ... ... ... ...... 12

  • voltage (DC), kV [3]

    12 kV

    nocTosHHOE), B . .. ... ... ... ... 19-21 Anode voltage (DC), kV ....... ... ... ... ...... 12

  • voltage, absolute value, kV

    1.5 kV

    Hanpsixexue, kB: Cutoff voltage, absolute value, kV ............... 1.5

  • current, A [1]

    12 A

    aHOAa (NOCTOAHHOE) . ... ... 12 Filament startingcurrent, A . ................ ... 450

  • current, A [2]

    450 A

    aHOAa (NOCTOAHHOE) . ... ... 12 Filament startingcurrent, A . ................ ... 450

  • Dissipation, kW

    3 kW

    3anuparnst oTpuLaTenbHoe Dissipation, kW:

  • anode [1]

    3

    (a6COMIOTHOE 3HAYEHNE) . ... ... ............ 1,5 anode . ... 130

  • anode [2]

    15

    (a6COMIOTHOE 3HAYEHNE) . ... ... ............ 1,5 anode . ... 130

  • anode [3]

    130

    (a6COMIOTHOE 3HAYEHNE) . ... ... ............ 1,5 anode . ... 130

  • frequency, MHz

    30 MHz

    Paccensaemasn MOWHOCTb, KBT: Operating frequency, MHz . .................... 30

  • Temperature at stem and metal-to-ceramic

    130 C

    BHOMOM . .ottt ettt et e 130 Temperature at stem and metal-to-ceramic

  • Anode Characteristic Curves // /

    7

    Averaged Anode Characteristic Curves // / 7

  • grid

    0

    — S 0 ____ grid