ZM1025

Cold-cathode symbol indicator for specialized direct readout. Manufacturer documentation identifies its glow-discharge character-display function and provides electrical operating, rating, and mechanical information for use alongside numerical instrumentation displays.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: Special 13-pin
Socket code: B13B
Base pins: 13
Nominal heater: -

Description

ZM1025 is a cold-cathode symbol indicator, classified as Nixie for this batch. The supplied datasheet provides cold-cathode display ratings, operating conditions, and mechanical/display information.

Socket description

B13B Nixie 13-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: Special 13-pin
Socket code: B13B
Base pins: 13
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Special 13-pin - 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

Nixie

X-ray radiationInterelectrode capacitances

Max plate voltage: 170 V
Max cathode current: 2.5 mA
Regulator minimum current: 1 A
Regulator maximum current: 3 A
Regulator starting voltage: 170 V
Regulator maintaining voltage: 140 V

Single indicator/counting section. Nixie-specific electrical ratings and operating data are retained in TUBE_SECTION_PARAMETER.

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

1969 Nixie Valvo

Published operating points and test conditions from this source.

SECTION 1

Nixie

Characteristics

Ignition voltage
170 V
Typical
Burning voltage
140 V
Typical
Extinction voltage
118 V
Typical
Life with changing display
100000 h
At 2 mA; change every 1000 h or more often
Symbol display
direct glow symbols
Cold-cathode symbol indicator
Base
Special 13-pin
Socket B8S 702 28 / alternatives

Other

Continuous cathode current
1 to 3 mA
Absolute range
Recommended cathode current
2 mA
Published operating point
Maximum pulse cathode current
- to 10 mA
Pulse operation
Envelope temperature
- to 70 degC
Absolute maximum

Data set 02

196X Nixie Random Datasheets

Published operating points and test conditions from this source.

SECTION 1

Nixie

Characteristic

Supply Voltage Minimum
170 V
Published datasheet value
Extinguishing Voltage Minimum
120 V
Published datasheet value
Cathode/Anode Current Minimum
1 mA
Published datasheet value

Other

Ignition Voltage Maximum
160 V
Published datasheet value
Cathode/Anode Current Maximum
2.5 mA
Published datasheet value