BD310

Gas-filled cold-cathode bi-quinary Nixie indicator with ten cathodes and separate odd/even anodes for coded counter readout.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B13B
Base pins: -
Nominal heater: -

Description

BD310 is listed in the shared Burroughs Nixie numerical-readout catalog. The source establishes the gas-filled cold-cathode Nixie display principle, but the model-specific electrical cross-reference is not unambiguous enough to assign exact table values without guessing.

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

No fixed ratings are recorded for this section.

Gas-filled cold-cathode bi-quinary Nixie indicator with ten cathodes, separate odd/even anodes, and a shield electrode for binary-coded-decimal or bi-quinary counter readout.

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

Description

Display Principle
Glow discharge
Gas-filled cold-cathode readout principle

Data set 02

196X Burroughs Nixie

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

Off cathode voltage
50 to 75 V
Off cathodes
Off anode voltage
75 V
Must be less than
Shield voltage
75 V
Must be less than
Anode supply voltage
150 V
Typical circuit
Anode series resistor
20 kOhm
At 150 V anode supply
Anode series resistor
30 kOhm
At 175 V anode supply
Anode series resistor
39 kOhm
At 200 V anode supply
Off anode voltage
55 V
Typical circuit
Off cathode voltage
65 V
Typical circuit
Shield voltage
65 V
Typical circuit
Cathode current
1.5 to 3.5 mA
Typical circuit
Number of cathodes
10 count
Digits 0 through 9
Number of anodes
2 count
Odd and even cathode groups