BD307

Gas-filled cold-cathode Nixie numerical indicator designed to display decimal digits by selective glow discharge of shaped cathodes.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B14A
Base pins: -
Nominal heater: -

Description

BD307 is a gas-filled cold-cathode Nixie numerical/readout device. The shared catalog identifies it with the B7011 electrical family, using a maximum ionization voltage of 300 V and a recommended minimum supply of 300 V.

Socket description

Large readout/Nixie 14-contact base, 44.5 mm pin circle

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B14A
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: 15 mA
Regulator minimum current: 9 mA
Regulator maximum current: 15 mA
Regulator starting voltage: 300 V

Gas-filled cold-cathode numerical/readout device with common anode; selected cathode glows.

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
300 V
Supply Voltage Minimum
300 V
Catalog minimum supply voltage
Cathode Current Peak
15 mA
Cathode Current Average
12 mA
Individual Cathode Wattage Maximum
1.2 W
Test Supply Voltage
300 V
Test Series Resistor
12 kOhm
Display Size Class
Jumbo
Numeral Height
2.25 in
Recommended Socket
SK117
Recommended Supply Voltage
300 V
Series resistor 12 kOhm
Recommended Series Resistor
12 kOhm
Supply voltage 300 V

Characteristic

Cathode Current Minimum
9 mA
Cathode Current Maximum
15 mA