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Nixie ·Nixie

BD216

Gas-filled cold-cathode alphanumeric Nixie indicator designed to display letters and other characters by selective glow discharge.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B13B
Base pins
-
Nominal heater
-

Description

BD216 is a gas-filled cold-cathode Nixie numerical/readout device. The shared catalog identifies it with the 6844A electrical family, using a maximum ionization voltage of 170 V and a recommended minimum supply of 170 V.

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
-
Socket code
B13B
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
4 mA
Regulator minimum current
1.5 mA
Regulator maximum current
3 mA
Regulator starting voltage
170 V

Gas-filled cold-cathode Nixie special-character indicator; alphabetic A through K, less I, special-character tube (alias of B5018). Electrical/mechanical characteristics are stated to be generally comparable to the corresponding regular numerical tube family (6844A).

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

1961 Nixie Burroughs

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

  • Ionization Voltage Maximum

    170 V

  • Supply Voltage Minimum

    170 V

    Catalog minimum supply voltage

  • Cathode Current Peak

    4 mA

  • Cathode Current Average

    2 mA

  • Individual Cathode Wattage Maximum

    0.4 W

  • Test Supply Voltage

    170 V

  • Test Series Resistor

    15 kOhm

  • Display Size Class

    Standard

  • Numeral Height

    0.61 in

  • Recommended Socket

    HSK106 or HSK112

  • Recommended Supply Voltage

    170 V

    Series resistor 15 kOhm

  • Recommended Series Resistor

    15 kOhm

    Supply voltage 170 V

  • Recommended Supply Voltage

    250 V

    Series resistor 56 kOhm

  • Recommended Series Resistor

    56 kOhm

    Supply voltage 250 V

  • Recommended Supply Voltage

    300 V

    Series resistor 82 kOhm

  • Recommended Series Resistor

    82 kOhm

    Supply voltage 300 V

Characteristic

  • Cathode Current Minimum

    1.5 mA

  • Cathode Current Maximum

    3 mA

Environmental

  • Shock

    55 G

  • Vibration

    10 G

    60 cps

  • Operating Temperature Range

    -65 to +70 C

  • Altitude

    70000 ft

Data set 02

196X Burroughs Nixie

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

  • Ionization voltage

    170 V

    Absolute rating; maximum

  • Minimum supply voltage

    170 V

    Absolute rating; minimum recommended supply

  • Cathode current

    4 mA

    Peak

  • Cathode current

    2 mA

    Average

  • Individual cathode dissipation

    0.4 W

    Maximum

  • Anode supply voltage

    170 V

    BasicCircuit test condition

  • Anode series resistor

    15 kOhm

    BasicCircuit test condition

  • Cathode current

    1.5 to 3 mA

    BasicCircuit test condition

  • Numeral height

    0.61 in

    Standard

  • Recommended anode series resistor

    15 kOhm

    Anode supply 170 V

  • Recommended anode series resistor

    56 kOhm

    Anode supply 250 V

  • Recommended anode series resistor

    82 kOhm

    Anode supply 300 V

  • Pre-bias voltage

    75 to 120 V

    Referenced to on cathode