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

Power - Pentode (NOT beam) ·Pentode

6P38P

Power pentode designed for radio-frequency amplification, oscillation, modulation, or frequency-multiplier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 450 mA

Description

The 6P38P is a Russian wideband high-frequency output pentode. Its Russian source entry was translated to English and processed independently from neighboring partial entries.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
450 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
230000 Ω
Transconductance
0.065 S
Max plate voltage
200 V
Max screen voltage
160 V
Max plate dissipation
10.5 W
Max screen dissipation
1.8 W
Max cathode current
90 mA

Promoted ratings and characteristics translated from the filename-designated Russian entry only.

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

1981 Russian Tubes Katsnelson and Larionov

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Nominal heater voltage

    6.3 V

    Published source value

  • Nominal heater current

    450 mA

    Published source value

  • Transconductance

    65000 uS

    Published operating point

  • Plate resistance

    230000 Ohm

    Published operating point

  • Guaranteed service life

    1500 h

    Published source value