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Tube Tinker — Electron Tube Database
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Voltage Pentode or Tetrode (under 100V) ·Diode-Pentode

1SB6GT

GT-envelope battery diode-pentode combining detection with voltage amplification. The diode recovers the signal while the pentode supplies subsequent gain with modest operating-voltage and filament requirements.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
6BE
Socket code
IO
Base pins
7
Nominal heater
1.4 V / 50 mA

Description

Combined diode and pentode for detector and amplifier service in battery receivers. Electrical ratings and representative operating data were extracted from the approved manual page.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
6BE
Socket code
IO
Base pins
7
Nominal heater voltage
1.4 V
Nominal heater current
50 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

6BE - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
600000 Ω
Transconductance
0.00065 S
Max plate voltage
90 V
Max screen voltage
67.5 V

Combined diode and pentode for detector and amplifier service in battery receivers.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Diode section; source publishes limited separate diode ratings/characteristics.

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 General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Input capacitance

    3.2 pF

  • Output capacitance

    3 pF

  • Grid-to-plate capacitance

    0.25 pF

Other

  • Plate voltage

    90 V

    ClassA; OperatingPoint1

  • Screen voltage

    67.5 V

    ClassA; OperatingPoint1

  • Control-grid bias

    0 V

    ClassA; OperatingPoint1

  • Plate current

    1.45 mA

    ClassA; OperatingPoint1

  • Screen current

    0.38 mA

    ClassA; OperatingPoint1