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Power - Triode ·Triode

2C34

Compact dual power triode designed for RF transmitting service. Its two equivalent sections operate together as a power stage, with published conditions providing roughly 16 W RF output from modest drive and several-hundred-volt plate operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
MEDIUM7
Base pins
7
Nominal heater
6.3 V / 800 mA

Description

Twin-triode power amplifier tube for audio power amplification and oscillator service.

Socket description

Medium 7-contact transmitting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
MEDIUM7
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
800 mA
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

2 physical sections, with 1 unique section. The remaining sections have identical specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.005 S
Max plate voltage
340 V
Max plate dissipation
5 W
Max cathode current
49 mA

Representative row for two identical triode sections; starred current/power ratings in source are for both sections combined.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    800 mA

    Nominal

  • Maximum Plate Voltage

    340 V

  • Maximum Plate Dissipation

    5 W

  • Maximum Cathode Current

    49 mA

Characteristic

  • Transconductance

    5000 µS

    Typical

Data set 02

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum Combined Plate Current

    80 mA

    BothSectionsCombined

  • Maximum Combined Grid 1 Current

    20 mA

    BothSectionsCombined

  • Maximum Combined Plate Dissipation

    10 W

    BothSectionsCombined

  • Drive Power

    1.8 W

    BothSectionsCombined

  • Output Power

    16 W

    BothSectionsCombined

Characteristic

  • Grid-to-Plate Capacitance

    2.4 pF

    RepresentativeSection