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Power - Triode ·Triode

GM3A

Russian power triode for low-frequency low-distortion cathode-coupled amplifier service in electronic or RF equipment.

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

Description

The GM-3A triode is used in low-frequency low-distortion cathode-coupled amplifier circuits in electronic equipment, with water-cooled anode and air-cooled stem.

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
6.3 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
3000 V

Promoted-field audit performed from English ratings/characteristics; detailed electrical values 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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • frequency no-distor

    3 Hz

    The 'M-3A triode is used in low-frequency no-distor-

  • Cathode: directly heated, carbonized thoriated tungsten [1]

    1

    Cathode: directly heated, carbonized thoriated tungsten. 1, 3- kavoa; 2, 4 — ceTka;

  • Cathode: directly heated, carbonized thoriated tungsten [2]

    3

    Cathode: directly heated, carbonized thoriated tungsten. 1, 3- kavoa; 2, 4 — ceTka;

  • Cathode: directly heated, carbonized thoriated tungsten [3]

    2

    Cathode: directly heated, carbonized thoriated tungsten. 1, 3- kavoa; 2, 4 — ceTka;

  • Cathode: directly heated, carbonized thoriated tungsten [4]

    4

    Cathode: directly heated, carbonized thoriated tungsten. 1, 3- kavoa; 2, 4 — ceTka;

  • grid [1]

    1

    Envelope: glass-to-metal. 1, 3 - cathode; 2, 4 - grid;

  • grid [2]

    3

    Envelope: glass-to-metal. 1, 3 - cathode; 2, 4 - grid;

  • grid [3]

    2

    Envelope: glass-to-metal. 1, 3 - cathode; 2, 4 - grid;

  • grid [4]

    4

    Envelope: glass-to-metal. 1, 3 - cathode; 2, 4 - grid;

  • temperature,°C . . . . .. ... ... L [1]

    -10 C

    TemnepaTypa okpyXxatouweit cpeab), °C . . . . . . . -10—+55 Ambient temperature,°C . . . . .. ... ... L. -10t0 +55

  • temperature,°C . . . . .. ... ... L [2]

    55 C

    TemnepaTypa okpyXxatouweit cpeab), °C . . . . . . . -10—+55 Ambient temperature,°C . . . . .. ... ... L. -10t0 +55

  • temperature,°C . . . . .. ... ... L [3]

    -10 C

    TemnepaTypa okpyXxatouweit cpeab), °C . . . . . . . -10—+55 Ambient temperature,°C . . . . .. ... ... L. -10t0 +55

  • temperature,°C . . . . .. ... ... L [4]

    55 C

    TemnepaTypa okpyXxatouweit cpeab), °C . . . . . . . -10—+55 Ambient temperature,°C . . . . .. ... ... L. -10t0 +55

  • Mutual conductance, mA/NV . . . . . L L L L L [1]

    17 uS

    KpyTtuana xapakrepuctuku, MA/B . . . . . . . L . 17-27 Mutual conductance, mA/NV . . . . . L L L L L. 17-27

  • Mutual conductance, mA/NV . . . . . L L L L L [2]

    -27 uS

    KpyTtuana xapakrepuctuku, MA/B . . . . . . . L . 17-27 Mutual conductance, mA/NV . . . . . L L L L L. 17-27

  • Mutual conductance, mA/NV . . . . . L L L L L [3]

    17 uS

    KpyTtuana xapakrepuctuku, MA/B . . . . . . . L . 17-27 Mutual conductance, mA/NV . . . . . L L L L L. 17-27

  • Mutual conductance, mA/NV . . . . . L L L L L [4]

    -27 uS

    KpyTtuana xapakrepuctuku, MA/B . . . . . . . L . 17-27 Mutual conductance, mA/NV . . . . . L L L L L. 17-27

  • Gain coefficient [1]

    7

    Koachduument yeunenms . . . . . . ... L L L. 7-11 Gain coefficient . . . . . . ... ... ... 7-11

  • Gain coefficient [2]

    -11

    Koachduument yeunenms . . . . . . ... L L L. 7-11 Gain coefficient . . . . . . ... ... ... 7-11

  • Gain coefficient [3]

    7

    Koachduument yeunenms . . . . . . ... L L L. 7-11 Gain coefficient . . . . . . ... ... ... 7-11

  • Gain coefficient [4]

    -11

    Koachduument yeunenms . . . . . . ... L L L. 7-11 Gain coefficient . . . . . . ... ... ... 7-11

  • voltage3kV [1]

    6 kV

    NpU HANPAXKEHWN aHOAA B UMNYNbCE at peak anode voltage3kV . . . . ... ... .. 6-10

  • voltage3kV [2]

    -10 kV

    NpU HANPAXKEHWN aHOAA B UMNYNbCE at peak anode voltage3kV . . . . ... ... .. 6-10

  • voltage [1]

    6 kV

    BkB . . . ... 6-10 Cutoff voltage (at anode voltage 4.5 kV,

  • voltage [2]

    -10 kV

    BkB . . . ... 6-10 Cutoff voltage (at anode voltage 4.5 kV,

  • voltage [3]

    4.5 kV

    BkB . . . ... 6-10 Cutoff voltage (at anode voltage 4.5 kV,

  • current [1]

    500 mA

    Hanpsi»xeHue oTceku (npu HanpsxeHuu anode current 0.5 A}, V,atmost . . . . . .. .. .. 600

  • current [2]

    600 A

    Hanpsi»xeHue oTceku (npu HanpsxeHuu anode current 0.5 A}, V,atmost . . . . . .. .. .. 600

  • Interelectrode capacitance, pF [1]

    45 pF

    anopa 4,5 kB, Toke aHoga 0,5 A), B, Interelectrode capacitance, pF:

  • Interelectrode capacitance, pF [2]

    5 pF

    anopa 4,5 kB, Toke aHoga 0,5 A), B, Interelectrode capacitance, pF:

  • input,atmost

    600

    Hebonee . . .. . ... ... ... 600 input,atmost . . . . .. ...

  • output,atmost . . . .. ..o [1]

    6

    MexanekTpoaHbie emkocTy, nd, He 6onee: output,atmost . . . .. ..o 6

  • output,atmost . . . .. ..o [2]

    6

    MexanekTpoaHbie emkocTy, nd, He 6onee: output,atmost . . . .. ..o 6

  • voltage. kV . . . ... ..o [1]

    0 kV

    Hanpsxenue avopa, kB . . . . . . . .0. 6 Anode voltage. kV . . . ... ..o 6

  • voltage. kV . . . ... ..o [2]

    6 kV

    Hanpsxenue avopa, kB . . . . . . . .0. 6 Anode voltage. kV . . . ... ..o 6

  • voltage. kV . . . ... ..o [3]

    6 kV

    Hanpsxenue avopa, kB . . . . . . . .0. 6 Anode voltage. kV . . . ... ..o 6

  • anode [1]

    7510

    AHOAOM . .« o o e 7,510° anode . . . .. 7510°

  • anode [2]

    7510

    AHOAOM . .« o o e 7,510° anode . . . .. 7510°

  • grid [1]

    300

    CETKOM . . . . . . . o 300 grid . ... 300

  • grid [2]

    300

    CETKOM . . . . . . . o 300 grid . ... 300

  • Temperature at envelope, stem and seals, °C [1]

    60104 C

    TemnepaTypa 060104KN, HOXKKW U cnaes, °C . . . . 150 Temperature at envelope, stem and seals, °C . . . . 150

  • Temperature at envelope, stem and seals, °C [2]

    150 C

    TemnepaTypa 060104KN, HOXKKW U cnaes, °C . . . . 150 Temperature at envelope, stem and seals, °C . . . . 150

  • Temperature at envelope, stem and seals, °C [3]

    150 C

    TemnepaTypa 060104KN, HOXKKW U cnaes, °C . . . . 150 Temperature at envelope, stem and seals, °C . . . . 150

  • Anode Characteristic Curves: U, =

    6.3

    Averaged Anode Characteristic Curves: U, =6.3V;

  • grid [1]

    4

    . /) — - — grid 4 A 4 &fi Z_

  • grid [2]

    4

    . /) — - — grid 4 A 4 &fi Z_