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Voltage - Dual Triode (similar) ·Triode-Triode

6N8P

Indirectly heated oxide-cathode dual triode intended for low-frequency voltage amplification, providing two sections for audio-frequency and general signal-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

Indirectly heated oxide-cathode dual triode intended for low-frequency voltage amplification.

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
6.3 V
Nominal heater current
600 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, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0026 S
Amplification factor
20
Max plate voltage
330 V
Max plate dissipation
2.75 W

Published electrical data translated from the supplied Chinese-language source; repeated identical sections are compressed per project rules.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0026 S
Amplification factor
20
Max plate voltage
330 V
Max plate dissipation
2.75 W

Second physical triode section; added to align rows with SectionCount.

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

198X Shuguang

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    6.3 V

    Nominal

  • Heater current

    600 mA

    Nominal

  • Plate voltage

    250 V

    Published principal electrical parameter