Alternatives & variations Download PDF datasheet

41E

Brimar companion designation to type 41, sharing the same published power-pentode electrical characteristics. Designed for receiver audio-output and low-frequency power-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 400 mA

Description

Explicit 41E companion designation on the Brimar 41/41E power-pentode sheet, with the same published electrical characteristics.

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: 400 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: 68000 Ω
Transconductance: 0.0023 S

Published ratings and characteristics promoted semantically from the approved source; identical dual rectifier sections compressed to one representative section row.

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

1948 Brimar Radio Valve Manual

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate Voltage
180 V
Point1
Plate Voltage
250 V
Point2
Plate Current
18.5 mA
Point1
Plate Current
32 mA
Point2
Screen Voltage
180 V
Point1
Screen Voltage
250 V
Point2
Power Output
1.5 W
Point1
Power Output
3.4 W
Point2

Characteristic

Transconductance
1850 µS
Point1
Transconductance
2300 µS
Point2
Plate Resistance
81000 ohm
Point1
Plate Resistance
68000 ohm
Point2