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Voltage Pentode ·Pentode

DF41W

Pentode intended for voltage-amplifier or receiving service; available source does not clearly establish a narrower functional classification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
POST8
Base pins
8
Nominal heater
1.4 V / 50 mA

Description

DF41W: pentode valve with published operating data and limiting ratings. The approved German-language datasheet was translated and interpreted by technical meaning.

Socket description

German 8-contact Postsockel

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
POST8
Base pins
8
Nominal heater voltage
1.4 V
Nominal heater current
50 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
Max plate voltage
135 V
Max plate dissipation
0.3 W

Published ratings and characteristic constants promoted where applicable.

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

194X Wehrmacht Rohren

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum anode voltage

    135 V

  • Maximum anode dissipation

    0.3 W