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Diode (NOT rectifier) ·Diode

1NA31

Directly heated noise diode designed specifically as a noise source in electronic noise generators.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
5 V / 1.5 A

Description

Directly heated noise diode intended as a noise source in noise generators.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
5 V
Nominal heater current
1.5 A
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

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
150 V

Published ratings and characteristics promoted from the source where directly stated.

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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristics

  • Heater or filament voltage

    5 V

    Published nominal value

  • Heater or filament current

    1.5 A

    Published nominal value

  • Anode current

    22 mA

    At 150 V anode voltage

Capacitance

  • Anode-cathode capacitance

    - to 2.8 pF

    Maximum