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Voltage Tetrode ·Tetrode

B2042

Philips Miniwatt screened-grid pentode developed for RF amplification in early high-voltage, low-current heater systems.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B5
Base pins
5
Nominal heater
20 V / 180 mA

Description

B2042 is a Philips Miniwatt pentode intended for rf amplifier screened-grid tube. The supplied datasheet gives heater, operating, characteristic, and rating information applicable to this type.

Socket description

European 5-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B5
Base pins
5
Nominal heater voltage
20 V
Nominal heater current
180 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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.001 S
Max plate voltage
250 V
Max screen voltage
250 V
Max plate dissipation
1 W
Max screen dissipation
0.25 W
Max cathode current
10 mA

RF amplifier screened-grid tube.

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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Normal plate current

    4 mA

  • Average screen-grid current

    1.9 mA