Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Radiation Counter ·Other

6BF8

Miniature sextuple diode containing six diode sections for shunt-detector applications involving multiple input signals. The manufacturer documentation identifies it as an electronic signal detector rather than a nuclear-radiation counter.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
6
Base
9NX
Socket code
-
Base pins
9
Nominal heater
6.3 V / 450 mA

Description

The 6BF8 is a miniature sextuple diode suitable for shunt-detector applications in which a number of input signals are encountered.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9NX
Socket code
-
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9NX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

6 physical sections, with 1 unique section. The remaining sections have identical specifications.

Section 1

Other

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Representative row for six identical detector-diode sections; detector PIV/current data are preserved in parameters rather than rectifier-specific promoted fields.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Other

Other

  • Peak Inverse Plate Voltage

    165 V

    EachDiode

  • Peak Plate Current Per Plate

    11 mA

    EachDiode

  • DCOutputCurrentPerPlate

    2.2 mA

    EachDiode

  • HeaterCathodeVoltagePositive

    100 V

    EachDiode

  • HeaterCathodeVoltageNegative

    100 V

    EachDiode

Characteristic

  • Tube Voltage Drop

    1.4 V

    EachDiode; PlateCurrent=5mA

Capacitance

  • Plate To Cathode And Heater Capacitance

    2.6 pF

    Section1

  • Plate To Cathode And Heater Capacitance

    2.8 pF

    Section2

  • Plate To Cathode And Heater Capacitance

    2.6 pF

    Section3

  • Plate To Cathode And Heater Capacitance

    4 pF

    Section4

  • Plate To Cathode And Heater Capacitance

    4 pF

    Section5

  • Plate To Cathode And Heater Capacitance

    3.8 pF

    Section6

  • Plate To All Capacitance

    4.4 pF

    EachDiode