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Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Triode

6BU6

Receiving tube combining radio signal detection or control-voltage rectification with associated voltage amplification. Its detector function is integral to receiver signal processing and supports classification within the radio detector/converter family.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
7BT-0-2
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 300 mA

Description

6BU6 is a DualDiodeTriode device. Combined double-diode detector and triode voltage amplifier.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7BT-0-2
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7BT-0-2 - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Diode section.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
8500 Ω
Transconductance
0.0019 S
Amplification factor
16
Max plate voltage
300 V

Combined double-diode detector and triode voltage amplifier.

Section 3

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Diode section.

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 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • Plate Voltage

    250 V

    Published operating/characteristic table

  • Grid Voltage

    -9 V

    Published operating/characteristic table

Characteristic

  • Plate Current

    9.5 mA

    Published operating/characteristic table

  • Transconductance

    1900 uS

    Published operating/characteristic table

  • Plate Resistance

    8500 ohm

    Published operating/characteristic table

SECTION 2

Triode

Other

  • Plate Voltage

    250 V

    Published operating/characteristic table

  • Grid Voltage

    -9 V

    Published operating/characteristic table

Characteristic

  • Plate Current

    9.5 mA

    Published operating/characteristic table

  • Transconductance

    1900 uS

    Published operating/characteristic table

  • Plate Resistance

    8500 ohm

    Published operating/characteristic table

Data set 02

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • Maximum continuous diode current

    - to 1 mA

    Diode1

SECTION 2

Triode

Other

  • Plate voltage

    100 V

    ClassA

  • Plate current

    3.9 mA

    ClassA

Characteristic

  • Plate resistance

    11 kOhm

  • Amplification factor

    16.5

SECTION 3

Diode

Other

  • Maximum continuous diode current

    - to 1 mA

    Diode2