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4377

Gas-discharge surge arrester designed to protect lines and equipment from transient overvoltage by diverting excessive voltage through a controlled discharge.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Gas-discharge surge arrester for protection of lines and apparatus against transient overvoltage.

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: -
Nominal heater current: -
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

Voltage Regulator

X-ray radiationInterelectrode capacitances

Regulator maximum current: 45 mA
Regulator dynamic impedance: 80 Ω

Philips neon stabiliser tube for voltage-regulator service.

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

Voltage Regulator

Other

Running voltage
105 to 115 V
AtQuiescentCurrent=20mA
Quiescent current
20 mA
AtPublishedRunningVoltage
Maximum permissible current
45 mA

Characteristic

Striking voltage
130 to 140 V
Extinction voltage
104 to 104 V
AC resistance
80 ohm
Dynamic

Data set 02

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

DeviceFunction
SurgeArrester
GasDischarge