F9080B

Cold-cathode numeric or character indicator cross-referenced to RFT Z570M. The comparison catalog explicitly warns that comparable types need not be electrically identical, so the relationship supports functional identification rather than exact rating equivalence.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: Wire lead
Socket code: B13D
Base pins: -
Nominal heater: -

Description

F9080B is a cold-cathode numeric or character indicator tube listed in the supplied German comparison catalog as comparable to RFT type Z570M. The catalog provides electrical and mechanical data for that RFT type, including anode striking, maintaining, and operating limits. The source cautions that comparable types are not necessarily electrically identical, so the mapped RFT values are retained as comparison data rather than asserted as exact original-manufacturer ratings.

Socket description

13-pin subminiature Nixie wire-lead base family

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: Wire lead
Socket code: B13D
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Wire lead - 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 cathode current: 2.5 mA
Regulator starting voltage: 150 V
Regulator maintaining voltage: 140 V

Cold-cathode display section; promoted starting/maintaining voltages are anode striking/burning values published for comparable RFT type Z570M.

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

Other

Comparable RFT Type
Z570M
Catalog cross-reference; comparable types are not guaranteed identical
Minimum Operating Supply Voltage
170 V
Published for comparable RFT type Z570M
Cathode Current Minimum
1.5 mA
Published for comparable RFT type Z570M
Cathode Current Maximum
2.5 mA
Published for comparable RFT type Z570M
Peak Cathode Current
12 mA
Published for comparable RFT type Z570M
Ambient Temperature Minimum
-50 °C
Published for comparable RFT type Z570M
Ambient Temperature Maximum
70 °C
Published for comparable RFT type Z570M
Maximum Bulb Height
47.6 mm
Published for comparable RFT type Z570M
Maximum Bulb Diameter
19 mm
Published for comparable RFT type Z570M

Characteristic

Anode Striking Voltage
150 V
Published for comparable RFT type Z570M
Anode Maintaining Voltage
140 V
Published for comparable RFT type Z570M
Anode Extinction Voltage
120 V
Published for comparable RFT type Z570M