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

3RM215G

High-power indirectly heated triode. Available source material does not establish a narrower functional application confidently.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.5 V / 12 A

Description

The 3RM215G is a magnetically beamed industrial triode using a permanent magnet to guide electron flow and a solid gate electrode for RF amplifiers, oscillators, and industrial RF heating.

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
12.5 V
Nominal heater current
12 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.04 S
Amplification factor
42
Max plate voltage
6500 V
Max plate dissipation
8000 W
Max cathode current
24 A

Published maximum ratings and characteristics audited; remaining values retained densely 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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • (approximately

    30 W

    (approximately 30dB), and the driving power required for full output is

  • is well within the tube rating at anode voltages up to

    4 kV

    is well within the tube rating at anode voltages up to 4kV,

  • Heater voltage

    125 V

    Heater voltage 12,5 Vv

  • Heater current

    12 A

    Heater current 12 A

  • Mutual conductance

    40 mA/V

    Mutual conductance 40 mA/V

  • Gete to anode

    55

    Gete to anode 55 pF

  • Gate to cathode

    63

    Gate to cathode 63 pF

  • Anode to cathode (gate earthed)

    68

    Anode to cathode (gate earthed) 6,8 pF

  • For en anode dissipation of [1]

    10 kW

    For en anode dissipation of 10kW, a water flow of 1,5 gal/min

  • For en anode dissipation of [2]

    15 kW

    For en anode dissipation of 10kW, a water flow of 1,5 gal/min

  • Maximum pesk cathode current

    24 mA

    Maximum pesk cathode current 24 A

  • Maximum direct anode current

    55 mA

    Maximum direct anode current 5,5 A

  • Maximum direct anode dissipation (continuous)

    8 kW

    Maximum direct anode dissipation (continuous) 8 kW

  • Maximum direct gate voltage ~

    -750 V

    Maximum direct gate voltage ~-750 v

  • Direct anode voltage* [1]

    60 kV

    Direct anode voltage* 6,0 6,0 kV

  • Direct anode voltage* [2]

    60 kV

    Direct anode voltage* 6,0 6,0 kV

  • Direct gate voltage =

    500 V

    Direct gate voltage =500 v

  • Direct anode current [1]

    52 A

    Direct anode current 5,2 2,7 A

  • Direct anode current [2]

    27 A

    Direct anode current 5,2 2,7 A

  • Peak r.f. gate voltage

    870 V

    Peak r.f. gate voltage 870 Vv

  • Gate dissipation [1]

    587 W

    Gate dissipation 58,7 6 W

  • Gate dissipation [2]

    6 W

    Gate dissipation 58,7 6 W

  • Power input [1]

    312 kW

    Power input 31,2 16,2 kW

  • Power input [2]

    162 kW

    Power input 31,2 16,2 kW

  • Anode dissipation [1]

    80 kW

    Anode dissipation 8,0 3,2 kW

  • Anode dissipation [2]

    32 kW

    Anode dissipation 8,0 3,2 kW

  • Power into load at

    90 W

    Power into load at 90%

  • transfer efficiency [1]

    209

    transfer efficiency 20,9 11,7 kW

  • transfer efficiency [2]

    117

    transfer efficiency 20,9 11,7 kW

  • Fig

    1 V

    Fig. 1. Typical Anode Current and Gate Current versus Anode Voltage

  • pd #+

    400 kV

    pd #+400V ANODE VOLTAGE (kV)

  • Fig

    2 A

    Fig. 2. Typical Constant Current Characteristics

  • P2

    17 A

    P217 ————— Gate current (A)

  • Fig

    3 V

    Fig. 3. Typical Anode Current versus Gate Voltage

  • D anode F | [1]

    794

    D anode F |794 5/16

  • D anode F | [2]

    5

    D anode F |794 5/16

  • D anode F | [3]

    16

    D anode F |794 5/16