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B2052T

Philips tetrode documented in receiving-tube tables with published operating and characteristic data; available source material does not support a narrower functional reassignment without speculation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B5
Base pins: 5
Nominal heater: 20 V / 180 mA

Description

B2052T is listed in the supplied tube table as a tetrode. Published electrical values were transcribed from its target row.

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

Plate resistance: 450000 Ω
Transconductance: 0.0009 S
Max plate voltage: 250 V
Max screen voltage: 175 V
Max plate dissipation: 1 W
Max screen dissipation: 0.25 W

Published table ratings and electrical characteristics reviewed; ambiguous cells were not inferred.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Maximum plate voltage
200 V
Published table rating
Plate voltage
200 V
Published operating point
Screen voltage
100 V
Published operating point
Control-grid bias
2 V
Published operating point
Plate current
3 mA
Published operating point
Screen current
0.2 mA
Published operating point

Characteristic

Plate resistance
450000 ohm
Published table characteristic
Transconductance
900 µS
Published table characteristic
Heater/filament voltage
20 V
Published heater/filament rating
Heater/filament current
180 mA
Published heater/filament rating

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Maximum cathode current
10 mA
Average screen-grid current
0.62 mA