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Tube Tinker — Electron Tube Database
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Nixie ·Nixie

7978

Cold-cathode gas-filled bidirectional ring-stepping decade counter with visible neon-glow indication of the active count position.

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

Description

Cold-cathode gas-filled bidirectional ring stepping decade counter with visual neon-glow readout.

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

Nixie

X-ray radiationInterelectrode capacitances
Max cathode current
0.6 mA

Published maximum ratings and characteristics promoted from approved source.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

  • Maximum Plate Voltage

    425 V

  • Maximum Cathode Current

    0.6 mA

  • TotalAnodeCurrentMinimum

    0.3 mA

  • TotalAnodeCurrentMaximum

    0.6 mA

  • InputFrequencyMaximum

    5000 Hz