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Power - Triode ·Triode

RE304

Directly heated audio output triode designed for loudspeaker power service at comparatively high plate voltage.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 300 mA

Description

Directly heated audio output triode intended for operation at relatively high plate voltage.

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
4 V
Nominal heater current
300 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.002 S
Amplification factor
5
Max plate voltage
200 V

Published ratings and characteristics promoted from the supplied Telefunken source where explicitly readable.

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    4 V

  • HeaterOrFilamentCurrent

    300 mA

Other

  • RecommendedPlateVoltageMinimum

    180 V

    AudioOutput

  • RecommendedPlateVoltageMaximum

    200 V

    AudioOutput