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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

GU70B

Forced-air-cooled Soviet tetrode for linear RF power amplification to approximately 500 MHz.

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

Description

The GU-70B tetrode is used for linear RF power amplification at frequencies up to 500 MHz. It has an indirectly heated oxide-coated cathode, metal-ceramic construction, and forced-air cooling.

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
8 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

Tetrode

X-ray radiationInterelectrode capacitances
Max plate voltage
3500 V
Max screen voltage
400 V
Max plate dissipation
350 W
Max cathode current
360 mA

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

Tetrode

Other

  • power > E > RS

    706 W

    The I'Y-706 tetrode is used for linear power > E > RS

  • grid [1]

    150

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [2]

    1

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [3]

    2

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [4]

    4

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [5]

    6

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [6]

    8

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [7]

    3

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [8]

    7

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [9]

    5

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [10]

    1

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • grid [11]

    2

    Mass: at most 150 g. 1-grid; 2, 4, 6, 8, — cathode; 3, 7 — heater; 5 — vacant; Cf - grid 1; C2 —grid 2;

  • voltage (ACorDC),V

    8 V

    HanpsxeHne Hakana (nepemeHHoe unm Heater voltage (ACorDC),V . .................. 8

  • voltage [1]

    31 uS

    ToKHaKanNa, A .. ... ..ot 3,1-3,7 Mutual conductance (at anode voltage 1.75kV,

  • voltage [2]

    -37 uS

    ToKHaKanNa, A .. ... ..ot 3,1-3,7 Mutual conductance (at anode voltage 1.75kV,

  • voltage [3]

    1.75 uS

    ToKHaKanNa, A .. ... ..ot 3,1-3,7 Mutual conductance (at anode voltage 1.75kV,

  • voltage change + [1]

    2 V

    KpyTusHa xapakTepucTuKi (Npu HanpsDKeHUsIX grid 2 voltage 400 V, grid 1 voltage change +2.5V,

  • voltage change + [2]

    400 V

    KpyTusHa xapakTepucTuKi (Npu HanpsDKeHUsIX grid 2 voltage 400 V, grid 1 voltage change +2.5V,

  • voltage change + [3]

    1 V

    KpyTusHa xapakTepucTuKi (Npu HanpsDKeHUsIX grid 2 voltage 400 V, grid 1 voltage change +2.5V,

  • voltage change + [4]

    2.5 V

    KpyTusHa xapakTepucTuKi (Npu HanpsDKeHUsIX grid 2 voltage 400 V, grid 1 voltage change +2.5V,

  • current [1]

    175 mA

    aHopa 1,75 kB, BTopon ceTkun 400 B, anode current 200 mA), mA/NV ... ... ... 14-28

  • current [2]

    400 mA

    aHopa 1,75 kB, BTopon ceTkun 400 B, anode current 200 mA), mA/NV ... ... ... 14-28

  • current [3]

    200 mA

    aHopa 1,75 kB, BTopon ceTkun 400 B, anode current 200 mA), mA/NV ... ... ... 14-28

  • current [4]

    14 mA

    aHopa 1,75 kB, BTopon ceTkun 400 B, anode current 200 mA), mA/NV ... ... ... 14-28

  • current [5]

    -28 mA

    aHopa 1,75 kB, BTopon ceTkun 400 B, anode current 200 mA), mA/NV ... ... ... 14-28

  • voltages [1]

    2 V

    W3MEHEHUW HanPsHKeHUs NepBOiA Gain coefficient (at grid 2 voltages 400 and

  • voltages [2]

    400 V

    W3MEHEHUW HanPsHKeHUs NepBOiA Gain coefficient (at grid 2 voltages 400 and

  • current2 [1]

    25 mA

    ceTku Ha +2,5 B, Toke aHoaa 350 V,anode current200mA) .................. 9-18

  • current2 [2]

    350 mA

    ceTku Ha +2,5 B, Toke aHoaa 350 V,anode current200mA) .................. 9-18

  • current2 [3]

    0 mA

    ceTku Ha +2,5 B, Toke aHoaa 350 V,anode current200mA) .................. 9-18

  • current2 [4]

    9 mA

    ceTku Ha +2,5 B, Toke aHoaa 350 V,anode current200mA) .................. 9-18

  • current2 [5]

    -18 mA

    ceTku Ha +2,5 B, Toke aHoaa 350 V,anode current200mA) .................. 9-18

  • anode [1]

    200 V

    200MA),MA/B ... 14-28 Negative bias voltage (at anode

  • anode [2]

    14 V

    200MA),MA/B ... 14-28 Negative bias voltage (at anode

  • anode [3]

    -28 V

    200MA),MA/B ... 14-28 Negative bias voltage (at anode

  • anode [1]

    1.75 kV

    KoahhnuumeHT yeunenms (npn HanpshkeHnax voitage 1.75kV, grid 2 voltage 400 V, anode

  • anode [2]

    2 kV

    KoahhnuumeHT yeunenms (npn HanpshkeHnax voitage 1.75kV, grid 2 voltage 400 V, anode

  • anode [3]

    400 kV

    KoahhnuumeHT yeunenms (npn HanpshkeHnax voitage 1.75kV, grid 2 voltage 400 V, anode

  • current [1]

    400 mA

    BTOpOW ceTkn 400 v 350 B, Toke current 200 mA), absolute value, V .............. 14-28

  • current [2]

    350 mA

    BTOpOW ceTkn 400 v 350 B, Toke current 200 mA), absolute value, V .............. 14-28

  • current [3]

    200 mA

    BTOpOW ceTkn 400 v 350 B, Toke current 200 mA), absolute value, V .............. 14-28

  • current [4]

    14 mA

    BTOpOW ceTkn 400 v 350 B, Toke current 200 mA), absolute value, V .............. 14-28

  • current [5]

    -28 mA

    BTOpOW ceTkn 400 v 350 B, Toke current 200 mA), absolute value, V .............. 14-28

  • voltage [1]

    200 kV

    aHoAa 200 MA) .. ... 9-18 Negative cutoff voltage (at anode voltage 2 kV,

  • voltage [2]

    9 kV

    aHoAa 200 MA) .. ... 9-18 Negative cutoff voltage (at anode voltage 2 kV,

  • voltage [3]

    -18 kV

    aHoAa 200 MA) .. ... 9-18 Negative cutoff voltage (at anode voltage 2 kV,

  • voltage [4]

    2 kV

    aHoAa 200 MA) .. ... 9-18 Negative cutoff voltage (at anode voltage 2 kV,

  • current [1]

    6 mA

    Hanpsxenue, B, He 6onee: grid 2 voltage 400 V, anode current 10 mA),

  • current [2]

    2 mA

    Hanpsxenue, B, He 6onee: grid 2 voltage 400 V, anode current 10 mA),

  • current [3]

    400 mA

    Hanpsxenue, B, He 6onee: grid 2 voltage 400 V, anode current 10 mA),

  • current [4]

    10 mA

    Hanpsxenue, B, He 6onee: grid 2 voltage 400 V, anode current 10 mA),

  • Interelectrode capacitance, pF

    175 pF

    HanpsbxeHusix aHoga 1,75 kB, sTopon Interelectrode capacitance, pF:

  • input,atmost [1]

    400

    ceTku 400 B, Toke aHoga 200 MA), input,atmost ...........

  • input,atmost [2]

    200

    ceTku 400 B, Toke aHoga 200 MA), input,atmost ...........

  • output,atmost [1]

    3

    abCONMOTHOE 3BHAYEHHNE . . . . ... ... ... ..o .. .. 14-28 output,atmost ............. ..

  • output,atmost [2]

    14

    abCONMOTHOE 3BHAYEHHNE . . . . ... ... ... ..o .. .. 14-28 output,atmost ............. ..

  • output,atmost [3]

    -28

    abCONMOTHOE 3BHAYEHHNE . . . . ... ... ... ..o .. .. 14-28 output,atmost ............. ..

  • power under conditions of class AB

    2 W

    Hanpsbkenusix aHoaa 2 kB, sTopoit Output power under conditions of class AB,

  • grid [1]

    400 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • grid [2]

    10 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • grid [3]

    2 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • grid [4]

    2 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • grid [5]

    400 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • grid [6]

    2 kV

    ceTku 400 B, Toke aHoaa 10 MA), (at anode voltage 2 kV, grid 2 voitage 400 V, grid 2

  • current at most

    20 mA

    abCOMOTHOG BHAYEHNE . . . .. ... . ... vennn current at most 20 mA,

  • frequency [1]

    6 MHz

    MexanekTpogHule eMKocTH, P, He 6onee: at frequency 0.1-1 MHz), W, atleast ............. 250

  • frequency [2]

    0.1 MHz

    MexanekTpogHule eMKocTH, P, He 6onee: at frequency 0.1-1 MHz), W, atleast ............. 250

  • frequency [3]

    -1 MHz

    MexanekTpogHule eMKocTH, P, He 6onee: at frequency 0.1-1 MHz), W, atleast ............. 250

  • frequency [4]

    250 MHz

    MexanekTpogHule eMKocTH, P, He 6onee: at frequency 0.1-1 MHz), W, atleast ............. 250

  • anode voitage [1]

    6 kV

    BBIXOAHAR . o\ v ie et e et (at heater voltage 6 V, anode voitage 1.9 kV,

  • anode voitage [2]

    1.9 kV

    BBIXOAHAR . o\ v ie et e et (at heater voltage 6 V, anode voitage 1.9 kV,

  • current DC component [1]

    6 A

    MPOXOAHAN . v i vt e ettt ee e eeaens 0,06 grid 2 voltage 400 V, anode current DC component

  • current DC component [2]

    2 A

    MPOXOAHAN . v i vt e ettt ee e eeaens 0,06 grid 2 voltage 400 V, anode current DC component

  • current DC component [3]

    400 A

    MPOXOAHAN . v i vt e ettt ee e eeaens 0,06 grid 2 voltage 400 V, anode current DC component

  • frequency [1]

    250 MHz

    MowwHocTb BbixogHas, BT, He MeHee: 250 mA, frequency 500 MHz), W, atleast ......... 125

  • frequency [2]

    500 MHz

    MowwHocTb BbixogHas, BT, He MeHee: 250 mA, frequency 500 MHz), W, atleast ......... 125

  • frequency [3]

    125 MHz

    MowwHocTb BbixogHas, BT, He MeHee: 250 mA, frequency 500 MHz), W, atleast ......... 125

  • voltage [1]

    6 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [2]

    20 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [3]

    1 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [4]

    -1 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [5]

    250 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [6]

    6 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [7]

    2 kV

    ceTku He 6onee 20 MA, yacTtoTe 0,1—1 MIy) .. .. 250 (at heater voltage 6 V, anode voltage 2 kV,

  • voltage [1]

    2 V

    B peXxxume Knacca B (npu HanpsixxeHusix Hakana grid 2 voltage 400 V), dB:

  • voltage [2]

    400 V

    B peXxxume Knacca B (npu HanpsixxeHusix Hakana grid 2 voltage 400 V), dB:

  • power under condition of class [1]

    500 W

    yactoTe 500 MINy, ... ... 125 Output power under condition of class

  • power under condition of class [2]

    125 W

    yactoTe 500 MINy, ... ... 125 Output power under condition of class

  • voltage, kV [1]

    57 kV

    Hakana (nepeMeHHoe UK NOCTOAHHOe) . ... ... 5,7-6,3 Anode voltage, kV:

  • voltage, kV [2]

    -63 kV

    Hakana (nepeMeHHoe UK NOCTOAHHOe) . ... ... 5,7-6,3 Anode voltage, kV:

  • voltage, absolute value, V

    1 V

    nepBson CeTKU oTpULaTensHoe Negative grid 1 voltage, absolute value, V ... ......

  • voltage (DC),V ......... ... ..o [1]

    3 V

    (abCcortoTHOE 3HAYEHUE) ... ................ 150 Grid 2 voltage (DC),V ......... ... ..o,

  • voltage (DC),V ......... ... ..o [2]

    150 V

    (abCcortoTHOE 3HAYEHUE) ... ................ 150 Grid 2 voltage (DC),V ......... ... ..o,

  • voltage (DC),V ......... ... ..o [3]

    2 V

    (abCcortoTHOE 3HAYEHUE) ... ................ 150 Grid 2 voltage (DC),V ......... ... ..o,

  • current (DC component), mA

    400 mA

    BTOPOW CETKMN (NOCTOSHHOE) . . . . ..o oo ee . 400 Cathode current (DC component), mA ............

  • Dissipation, W

    360 W

    Tok KaToaa (NocTosiHHas cocTasnsowas), MA . . . .. 360 Dissipation, W:

  • grid [1]

    350

    AHOMOM . . ottt it 350 grid 2:

  • grid [2]

    2

    AHOMOM . . ottt it 350 grid 2:

  • frequency, MHz

    500 MHz

    MEPBOMCETKOM . .. oottt iie i eeeiean Operating frequency, MHz . ................. ... 500

  • Temperature at the hottest point of envelope, °C [1]

    500 C

    .. .... 500 Temperature at the hottest point of envelope, °C . . .. 200