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1174

Directly heated Philips mercury-vapour or gas-filled industrial rectifier for large battery-charging installations up to about 110 lead-acid cells. Rated for approximately 850 V peak inverse voltage and 6 A output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: SPECIAL 3P
Socket code: -
Base pins: -
Nominal heater: 1.9 V / 18 A

Description

1174 is a directly heated industrial rectifier. Directly heated gas-filled rectifier with mercury-vapour/gas filling for industrial rectifier service up to 110 lead-acid cells.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: SPECIAL 3P
Socket code: -
Base pins: -
Nominal heater voltage: 1.9 V
Nominal heater current: 18 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

SPECIAL 3P - 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

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 850 V
Rectifier nominal output current: 6 A
Rectifier peak forward current: 30 A
Rectifier forward voltage drop: 12 V
Rectifier warm-up time: 60 s

Directly heated gas-filled rectifier with mercury-vapour/gas filling for industrial rectifier service up to 110 lead-acid cells.

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

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Arc voltage drop
12 V
GasFilled

Other

Maximum peak inverse anode voltage
850 V
Maximum average anode current
6 A
Maximum peak anode current
30 A
Maximum surge current
300 A
ShortDuration
Application
industrial rectifier service up to 110 lead-acid cells
Heater voltage
1.9 V
DirectAC
Heater current
18 A
DirectAC

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Construction

Filling
Mercury vapour and gas

Characteristics

Arc voltage
12 V
Ignition voltage
22 V

Other

Peak inverse voltage
850 V
Maximum peak current
36 A