Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Power - Triode ·Triode

OQ711000

Tungsram oxide-filament transmitting triode for RF power amplification and oscillator service. Rated around 1 kV plate operation and 75 W dissipation, it provides useful medium-power transmitting performance.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
10 V / 1.25 A

Description

Oxide-filament transmitting triode for radio-frequency power amplification and oscillator service.

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
10 V
Nominal heater current
1.25 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
4500 Ω
Transconductance
0.005 S
Amplification factor
23
Max plate voltage
1000 V
Max plate dissipation
75 W

Published ratings and characteristics promoted from the approved source.

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

195X Tunsgram

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    10 V

    Nominal

  • HeaterCurrentNominal

    1.25 A

    Nominal

  • Maximum Plate Voltage

    1000 V

  • Maximum Plate Dissipation

    75 W

Characteristic

  • Transconductance

    5000 µS

    Typical

  • Amplification Factor

    23

    Typical

  • Plate Resistance

    4500 ohm

    Typical