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Nixie ·Nixie

6476A

Gas-filled cold-cathode decade counter/readout tube with ten output cathodes and top-viewed glow indication.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B12A
Base pins
12
Nominal heater
-

Description

Gas-filled decade counter/readout tube with ten output cathodes and top-viewed indication.

Socket description

Duodecal 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12A
Base pins
12
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 plate voltage
800 V
Max cathode current
0.6 mA

Representative electrical section; promoted values mapped from published ratings/characteristics where applicable.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

  • Anode supply voltage minimum

    350 V

    Published datasheet value

  • Anode supply voltage maximum

    800 V

    Published datasheet value

  • Anode current minimum

    0.3 mA

    Published datasheet value

  • Anode current maximum

    0.6 mA

    Published datasheet value

  • Input frequency maximum

    4 kpps

    Published datasheet value

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

  • AnodeSupplyVoltageMinimum

    350 V

  • AnodeSupplyVoltageMaximum

    800 V

  • VoltageBetweenAnyElectrodesMaximum

    200 V

  • TransferVoltageMaximum

    140 V

  • AnodeCurrentMaximum

    0.6 mA

  • Anode Supply Voltage

    350 V

  • GuidePulseVoltage

    187 V

  • GuideBiasMinimum

    35 V

  • CathodeLoadResistanceMaximum

    150 kohm

Characteristic

  • AnyCathodeToAllCapacitance

    4 pF

  • Guide2ToAllCapacitance

    6 pF

  • Guide1ToAllCapacitance

    6 pF

  • DeviceFunction

    Decade counter with visual readout