Z522M

Gas-filled cold-cathode Nixie numerical indicator designed for decimal readout by selective glow discharge of shaped numeral cathodes.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 13–17 TGL 68-87
Socket code: B13B
Base pins: -
Nominal heater: -

Description

Z522M is a cold-cathode Nixie numerical/symbol indicator tube. The supplied RFT sheet gives 150 V ignition and 140 V burning voltage, a 170 V minimum operating supply, 3–6 mA cathode current, and 30 mm side-viewed symbols. Page 5 identifies Z522M as comparable to Z566M; electrical/display values are taken from the Z566M table column.

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: 13–17 TGL 68-87
Socket code: B13B
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

13–17 TGL 68-87 - 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: 6 mA

Cold-cathode glow-display section; maximum cathode current promoted in amperes.

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

1971 Nixie RFT

Published operating points and test conditions from this source.

SECTION 1

Nixie

Characteristic

Anode Ignition Voltage
150 V
Comparable type Z566M
Anode Burning Voltage
140 V
Comparable type Z566M
Anode Extinction Voltage
120 V
Comparable type Z566M

Other

Minimum Operating Voltage
170 V
Comparable type Z566M
Minimum Cathode Current
3 mA
Comparable type Z566M
Maximum Cathode Current
6 mA
Comparable type Z566M
Peak Cathode Current
20 mA
Comparable type Z566M
Minimum Ambient Temperature
-10 degC
Comparable type Z566M
Maximum Ambient Temperature
50 degC
Comparable type Z566M
Symbol Height
30 mm
Comparable type Z566M
Maximum Viewing Distance
18 m
Comparable type Z566M
Maximum Bulb Height
62 mm
Comparable type Z566M
Maximum Bulb Diameter
29.2 mm
Comparable type Z566M