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

GU5B

Directly heated metal-ceramic power triode for RF amplification to approximately 110 MHz. It uses a carbonized thoriated-tungsten cathode and forced-air cooling, with roughly 25 kW plate dissipation for very-high-power transmitter service.

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

Description

The GU-5B triode is used as a power-amplifier tube at frequencies up to 110 MHz in RF equipment. It has a directly heated carbonized thoriated-tungsten cathode 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
-
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
5000 V
Max plate dissipation
25000 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 amplifier tube at [1]

    5 W

    lenepaTopHbin Tpuog 'Y-5b npegHasHadeH ans The I'Y-5b triode is used as a power amplifier tube at

  • power amplifier tube at [2]

    5 W

    lenepaTopHbin Tpuog 'Y-5b npegHasHadeH ans The I'Y-5b triode is used as a power amplifier tube at

  • heating generators

    1

    TeXHU4ECKUX YCTPOWUCTBax 1 Ansa paboTbl B reHeparto- heating generators.

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

    10 C

    Temnepatypa okpyxatoien cpeael, °C ... ... ... .. Ambient temperature, °C ... ... ... L ~10to +55

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

    55 C

    Temnepatypa okpyxatoien cpeael, °C ... ... ... .. Ambient temperature, °C ... ... ... L ~10to +55

  • anode

    3 uS

    Mutual conductance (at anode voltage 3 kV, anode

  • voltages

    2 V

    Gain coefficient (at anode voltages 2 and

  • current0 [1]

    4 A

    4kV and anode current0.5A) .. .. ... ... .. .. ... 60-85

  • current0 [2]

    5 A

    4kV and anode current0.5A) .. .. ... ... .. .. ... 60-85

  • current0 [3]

    60 A

    4kV and anode current0.5A) .. .. ... ... .. .. ... 60-85

  • current0 [4]

    -85 A

    4kV and anode current0.5A) .. .. ... ... .. .. ... 60-85

  • voltage [1]

    4 kV

    anode voltage 4 kV), A ... ... .. ... L 0.45-0.75

  • voltage [2]

    0.45 kV

    anode voltage 4 kV), A ... ... .. ... L 0.45-0.75

  • voltage [3]

    -0.75 kV

    anode voltage 4 kV), A ... ... .. ... L 0.45-0.75

  • input,atmost

    19

    input,atmost ... ... 19

  • output,atmost [1]

    0.5

    output,atmost ... 0.5 1.3 - kavop:

  • output,atmost [2]

    1.3

    output,atmost ... 0.5 1.3 - kavop:

  • wavelength

    12 cm

    Output power (at wavelength 12 cm), kW, at C-cetka

  • anode

    35

    least ......... e 35 C - grid; A—anode:

  • cathode

    2

    cathode; 2 - cathode

  • dissipation, kW ... ... .o oL [1]

    25 kW

    Paccensaemas mowHOCTb aHogom, KBT .. ... ... .. 25 Anode dissipation, kW ... ... .o oL 25

  • dissipation, kW ... ... .o oL [2]

    25 kW

    Paccensaemas mowHOCTb aHogom, KBT .. ... ... .. 25 Anode dissipation, kW ... ... .o oL 25

  • frequency, MHz [1]

    110 MHz

    Pabowaswactota, My, ... .................. 110 Operating frequency, MHz .. .. .. ... ... .. .. ... 110

  • frequency, MHz [2]

    110 MHz

    Pabowaswactota, My, ... .................. 110 Operating frequency, MHz .. .. .. ... ... .. .. ... 110

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

    60104 C

    TemnepaTypa 060104KN, HOXKU 1 Temperature at envelope, stem and seals, °C . ... .. 150

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

    1 C

    TemnepaTypa 060104KN, HOXKU 1 Temperature at envelope, stem and seals, °C . ... .. 150

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

    150 C

    TemnepaTypa 060104KN, HOXKU 1 Temperature at envelope, stem and seals, °C . ... .. 150

  • Filament Characteristic Curve U =

    126

    Averaged Filament Characteristic Curve U =126V

  • Cathode R

    0.06 ohm

    Resistance of Fil y Cathode R.: 0.06 ()