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Specialized - Switching Tube ·ThermalDelaySwitch

4152

Bimetal thermal relay providing a roughly 60–100 second timing interval at the documented heater current, intended for delayed switching and control functions in electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B4
Base pins
-
Nominal heater
-

Description

Bimetal thermal relay with a 60–100 second timing interval at 92 mA heater current.

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B4
Base pins
-
Nominal heater voltage
-
Nominal heater current
92 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

ThermalDelaySwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published ratings and characteristics promoted from the supplied Philips source where explicitly available.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

ThermalDelaySwitch

Characteristic

  • HeaterOrFilamentCurrent

    92 mA

  • HeaterElementResistanceMinimum

    340 ohm

  • HeaterElementResistanceMaximum

    372 ohm

  • TimingMinimum

    60 s

    HeaterCurrent=92mA

  • TimingMaximum

    100 s

    HeaterCurrent=92mA

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

ThermalDelaySwitch

Other

  • Courant de chauffage

    92 mA

    Courant de chauffage 92 mA + 13 %

  • Timing at

    92 mA

    Timing at 92 mA 1

  • Temporisation &

    92 mA

    Temporisation & 92 mA 60-100 s')

  • 220 Va 1,5 4

    250 mA

    220 Va 1,5 4 250 mA

  • 380 Va

    700 mA

    380 Va 0,7 A 75 mA