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

GU71B

Russian metal-ceramic pentode for single-sideband and RF power amplification to approximately 75 MHz. Forced-air cooling and professional construction support substantial transmitting power.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 3.3 A

Description

The GU-71B pentode is used for single-sideband and RF power amplification at frequencies up to 75 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
12.6 V
Nominal heater current
3.3 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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
6500 V
Max screen voltage
400 V
Max plate dissipation
1500 W
Max screen dissipation
32 W
Max grid dissipation
3 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

Pentode

Other

  • leHepaTOpHbIA NeHTOoA NY [1]

    716

    leHepaTOpHbIA NeHTOoA NY-716 npeaHasHa4eH ans The I'Y-71B pentode is used for single-sideband

  • leHepaTOpHbIA NeHTOoA NY [2]

    71

    leHepaTOpHbIA NeHTOoA NY-716 npeaHasHa4eH ans The I'Y-71B pentode is used for single-sideband

  • grid [1]

    17

    & {17 - heater; C1- grid 1;

  • grid [2]

    1

    & {17 - heater; C1- grid 1;

  • grid [1]

    22

    CONDITIONS o — 22_ grid 2sa grid 3

  • grid [2]

    2

    CONDITIONS o — 22_ grid 2sa grid 3

  • grid [3]

    3

    CONDITIONS o — 22_ grid 2sa grid 3

  • voltage (ACorDC), V [1]

    126 V

    Hanpsokenune Hakana{(~wwm=),B .............. 12,6 Heater voltage (ACorDC), V ................... 12.6

  • voltage (ACorDC), V [2]

    12.6 V

    Hanpsokenune Hakana{(~wwm=),B .............. 12,6 Heater voltage (ACorDC), V ................... 12.6

  • voltage (DC), V [1]

    0 V

    TPETBEM CETKM . .. oottt i e 0 Grid 2 voltage (DC), V ..., 5-17

  • voltage (DC), V [2]

    2 V

    TPETBEM CETKM . .. oottt i e 0 Grid 2 voltage (DC), V ..., 5-17

  • voltage (DC), V [3]

    5 V

    TPETBEM CETKM . .. oottt i e 0 Grid 2 voltage (DC), V ..., 5-17

  • voltage (DC), V [4]

    -17 V

    TPETBEM CETKM . .. oottt i e 0 Grid 2 voltage (DC), V ..., 5-17

  • voltage, absolute value, V [1]

    5 V

    BTOPOW CETKU (MOCTOAHHOG) . . . .. oo v av et 5-17 Negative grid 1 voltage, absolute value, V,

  • voltage, absolute value, V [2]

    -17 V

    BTOPOW CETKU (MOCTOAHHOG) . . . .. oo v av et 5-17 Negative grid 1 voltage, absolute value, V,

  • voltage, absolute value, V [3]

    1 V

    BTOPOW CETKU (MOCTOAHHOG) . . . .. oo v av et 5-17 Negative grid 1 voltage, absolute value, V,

  • voltage [1]

    3 A

    (abcontoTHOE 3Ha4YeHne), He 6oree .. ......... 80 Anode current (at heater voltage 11.3 V),

  • voltage [2]

    6 A

    (abcontoTHOE 3Ha4YeHne), He 6oree .. ......... 80 Anode current (at heater voltage 11.3 V),

  • voltage [3]

    80 A

    (abcontoTHOE 3Ha4YeHne), He 6oree .. ......... 80 Anode current (at heater voltage 11.3 V),

  • voltage [4]

    11.3 A

    (abcontoTHOE 3Ha4YeHne), He 6oree .. ......... 80 Anode current (at heater voltage 11.3 V),

  • Mutual conductance, mA/V [1]

    92 mA/V

    Tok BTOpO ceTku, A, Hebonee . ... ............. 92 Mutual conductance, mA/V . ....... .. ... ... .. 52-72

  • Mutual conductance, mA/V [2]

    52 mA/V

    Tok BTOpO ceTku, A, Hebonee . ... ............. 92 Mutual conductance, mA/V . ....... .. ... ... .. 52-72

  • Mutual conductance, mA/V [3]

    -72 mA/V

    Tok BTOpO ceTku, A, Hebonee . ... ............. 92 Mutual conductance, mA/V . ....... .. ... ... .. 52-72

  • Voltage level of combination frequencies of [1]

    52 V

    KpyTusHa xapaktepucTuku, MA/B .. ............. 52-72 Voltage level of combination frequencies of

  • Voltage level of combination frequencies of [2]

    -72 V

    KpyTusHa xapaktepucTuku, MA/B .. ............. 52-72 Voltage level of combination frequencies of

  • current [1]

    3 mA

    TPETLErO U NATOro NOPAAKOB OTHOCUTENLHO (at anode voltage 3 kV, anode current 850 mA,

  • current [2]

    850 mA

    TPETLErO U NATOro NOPAAKOB OTHOCUTENLHO (at anode voltage 3 kV, anode current 850 mA,

  • frequency of [1]

    2 Hz

    HaNPsPKEHUs1 OCHOBHOIO TOKa (Npu HanpshHkKeHun grid 2 current at most 92 mA and frequency of

  • frequency of [2]

    92 Hz

    HaNPsPKEHUs1 OCHOBHOIO TOKa (Npu HanpshHkKeHun grid 2 current at most 92 mA and frequency of

  • heating time, s, atmost [1]

    6 s

    ceTku He 6onee 92 MA M HacToTe KonebaHwn Cathode heating time, s, atmost . ............... 210

  • heating time, s, atmost [2]

    92 s

    ceTku He 6onee 92 MA M HacToTe KonebaHwn Cathode heating time, s, atmost . ............... 210

  • heating time, s, atmost [3]

    210 s

    ceTku He 6onee 92 MA M HacToTe KonebaHwn Cathode heating time, s, atmost . ............... 210

  • power under class AB [1]

    70 W

    70 Mly), b, Hebonee .. ...................... -39 Oscillatory power under class AB,

  • power under class AB [2]

    -39 W

    70 Mly), b, Hebonee .. ...................... -39 Oscillatory power under class AB,

  • grid [1]

    6 kV

    Bpems pasorpesa katoga, ¢, He 6onee . .. ........ 210 amplification (at anode voltage 3 kV, grid 2

  • grid [2]

    210 kV

    Bpems pasorpesa katoga, ¢, He 6onee . .. ........ 210 amplification (at anode voltage 3 kV, grid 2

  • grid [3]

    3 kV

    Bpems pasorpesa katoga, ¢, He 6onee . .. ........ 210 amplification (at anode voltage 3 kV, grid 2

  • grid [4]

    2 kV

    Bpems pasorpesa katoga, ¢, He 6onee . .. ........ 210 amplification (at anode voltage 3 kV, grid 2

  • frequency of

    92 Hz

    KonebartenbHas MOLHOCTb B peXxume current at most 92 mA and frequency of

  • Interelectrode capacitance, pF [1]

    3 pF

    aHopa 3 kB, Toke BTOpoOA ceTku He 6onee Interelectrode capacitance, pF:

  • Interelectrode capacitance, pF [2]

    6 pF

    aHopa 3 kB, Toke BTOpoOA ceTku He 6onee Interelectrode capacitance, pF:

  • output,atmost [1]

    13

    ... ... i, 1,3 output,atmost ...... ... ... . . 35

  • output,atmost [2]

    35

    ... ... i, 1,3 output,atmost ...... ... ... . . 35

  • voltage (ACorDC),V [1]

    12 V

    HanpsxxeHnue Hakana (~vwm =),B . ........ 12-13,2 Heater voltage (ACorDC),V . ............. 12-13.2

  • voltage (ACorDC),V [2]

    -132 V

    HanpsxxeHnue Hakana (~vwm =),B . ........ 12-13,2 Heater voltage (ACorDC),V . ............. 12-13.2

  • voltage (ACorDC),V [3]

    12 V

    HanpsxxeHnue Hakana (~vwm =),B . ........ 12-13,2 Heater voltage (ACorDC),V . ............. 12-13.2

  • voltage (ACorDC),V [4]

    -13.2 V

    HanpsxxeHnue Hakana (~vwm =),B . ........ 12-13,2 Heater voltage (ACorDC),V . ............. 12-13.2

  • voltage, kV

    3.5 kV

    HanpsixeHue, B: Anode voltage, kV ................. .. ... 3.5

  • voltage, kV [1]

    35 kV

    BHOAR .« ovvve e e 3,5-10° Peak anode voltage, kV .................. 6.5

  • voltage, kV [2]

    -10 kV

    BHOAR .« ovvve e e 3,5-10° Peak anode voltage, kV .................. 6.5

  • voltage, kV [3]

    6.5 kV

    BHOAR .« ovvve e e 3,5-10° Peak anode voltage, kV .................. 6.5

  • voltage, absolute value, V [1]

    400 V

    BTOPOMCETKM ...t vveiinaenenennen 400 Grid 1 voltage, absolute value, V . .......... -100

  • voltage, absolute value, V [2]

    1 V

    BTOPOMCETKM ...t vveiinaenenennen 400 Grid 1 voltage, absolute value, V . .......... -100

  • voltage, absolute value, V [3]

    -100 V

    BTOPOMCETKM ...t vveiinaenenennen 400 Grid 1 voltage, absolute value, V . .......... -100

  • Dissipation, W

    0 W

    TPETBEM CETKU . . oo i aaen 0 Dissipation, W:

  • anode ........... i [1]

    1.5

    Paccevsaeman MOWHOCTDb, KBT: anode ........... i 1.5-10°

  • anode ........... i [2]

    -10

    Paccevsaeman MOWHOCTDb, KBT: anode ........... i 1.5-10°

  • frequency, MHz [1]

    3 MHz

    NEePBONCETKOA . .. .......ovvuiunnnn.. 3 Operating frequency, MHz .. .............. 75

  • frequency, MHz [2]

    75 MHz

    NEePBONCETKOA . .. .......ovvuiunnnn.. 3 Operating frequency, MHz .. .............. 75

  • heating time,s [1]

    75 s

    Pabouyagyactota, My .................. 75 Cathode heating time,s .................. 210

  • heating time,s [2]

    210 s

    Pabouyagyactota, My .................. 75 Cathode heating time,s .................. 210

  • anode and

    210 C

    Bpewms pasorpeBa Katoga, C .............. 210 Temperature at stem, anode and

  • anode [1]

    2

    - — — — grid 2-anode; — — — — grid 2-anode;

  • anode [2]

    2

    - — — — grid 2-anode; — — — — grid 2-anode;

  • Grid Characteristic Curves

    2

    2/ Averaged Anode-Grid Characteristic Curves: