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ZM1571

Philips cold-cathode gas-discharge indicator designed for numerical, sign, or segmented display service.

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

Description

Philips cold-cathode gas-filled indicator tube for numerical, sign, or segmented display service.

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

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X-ray radiationInterelectrode capacitances
Max cathode current
3 mA
Regulator starting voltage
165 V
Regulator maintaining voltage
120 V

Electrical section values extracted from published ratings and characteristics.

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 E-Z

Published operating points and test conditions from this source.

SECTION 1

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Characteristic

  • The tube is identical to ZM1551 but contains 150 nCi promethium 147. The ignition delay (first

    147

    The tube is identical to ZM1551 but contains 150 nCi promethium 147. The ignition delay (first