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Power - Triode Single (under 10W) ·Triode

416A

Disc-seal planar triode for microwave amplification or frequency multiplication at frequencies around 4 GHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
DISCSEAL4
Base pins
-
Nominal heater
-

Description

Disc-seal planar triode for amplifier or frequency-multiplier use at frequencies around 4000 megacycles.

Socket description

Disc-seal planar-triode 4-contact base family

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
DISCSEAL4
Base pins
-
Nominal heater voltage
-
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
260 V
Max plate dissipation
7.5 W
Max cathode current
33 mA

Promoted fields mapped from printed maximum-rating and characteristic headings; additional published values preserved in parameter rows.

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

2026 Western Electric 400s

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Voltage cveevsncvnns P

    260 volts

    Plate Voltage cveevsncvnns P 260 volts

  • Gricd VOltage sussennsnrornnnsasatosancscsasinsssisecseasaonssssnsnns

    1 volt

    Gricd VOltage sussennsnrornnnsasatosancscsasinsssisecseasaonssssnsnns +1.0 volt

  • Plate Seal Temperature cvsearerteossoastassasessasoorasrsonsnsrcssanss

    1259 Centigrade

    Plate Seal Temperature cvsearerteossoastassasessasoorasrsonsnsrcssanss 1259 Centigrade

  • Grid Seal Temperature svsesnssnenssrannsnsraostessnsasssrosansnonneane

    100 Centigrade

    Grid Seal Temperature svsesnssnenssrannsnsraostessnsasssrosansnonneane 100° Centigrade

Other

  • Plate DisSipation sueevevesesssssssrasnsnoararsannananrstaransnnnnns

    7.5 watts

    Plate DisSipation sueevevesesssssssrasnsnoararsannananrstaransnnnnns 7.5 watts