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

SS1971

Double-ended water-cooled transmitting triode for high-power RF service. Rated for approximately 15 kW plate dissipation and 12 kV plate voltage, with heavy directly heated construction for large professional transmitter stages.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
20 V / 64 A

Description

Double Ended Water Cooled Triode. DOUBLE ENDED WATER COOLED TRIODE.

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
20 V
Nominal heater current
64 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
Plate resistance
3500 Ω
Amplification factor
21
Max plate voltage
12000 V
Max plate dissipation
15000 W
Max grid dissipation
250 W

Special-valve ratings and characteristics retained as parameters where applicable.

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

1937 Standard Valves

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Filament voltage minimum

    19 V

  • Filament voltage maximum

    21 V

  • Total emission

    11 A

  • Grid-anode capacitance

    20 pF

  • Anode-filament capacitance

    55 pF

  • Grid-filament capacitance

    8 pF

Cooling

  • Water flow

    5 gallon/min

Other

  • Maximum direct anode current

    2.75 A

  • Maximum anode voltage for anode modulation

    9000 V

  • Maximum frequency for full ratings

    15 MHz

  • Anode voltage at 22 MHz

    10000 V

    22MHz

  • Balanced two-valve maximum signal output

    24 kW

    ClassB;Audio;TwoTubes