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

KBC1

Battery double-diode triode combining receiver detection and control-signal rectification with low-frequency voltage amplification, providing several radio signal-processing functions in one economical valve.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
-
Socket code
-
Base pins
-
Nominal heater
2 V / 100 mA

Description

KBC1 is listed in the supplied valve table as a duodiode-triode. Published operating and characteristic values were transcribed from its target row.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
2 V
Nominal heater current
100 mA
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

3 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
125 V
Max cathode current
0.2 mA

Published target-row operating and characteristic values reviewed.

Section 2

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
125 V
Rectifier nominal output current
0.2 mA

Published target-row operating and characteristic values reviewed.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
16000 Ω
Transconductance
0.001 S
Amplification factor
16
Max plate voltage
150 V
Max plate dissipation
0.6 W
Max cathode current
6 mA

Published target-row operating and characteristic values reviewed.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 3

Triode

Other

  • Plate voltage

    135 V

    Published table operating point

  • Plate current

    2.5 mA

    Published table operating point

  • Control-grid bias

    4 V

    Published table operating point

  • Alternate plate voltage

    90 V

    TriodeSection OperatingPoint2

  • Alternate plate current

    1 mA

    TriodeSection OperatingPoint2

Characteristic

  • Plate resistance

    16000 ohm

    Published table characteristic

  • Amplification factor

    16

    Published table characteristic

  • Heater/filament voltage

    2 V

    Published heater/filament rating

  • Heater/filament current

    100 mA

    Published heater/filament rating

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 2

Diode

Other

  • Maximum diode peak voltage

    125 V

  • Maximum diode current

    0.2 mA

Capacitance

  • Diode 1 capacitance

    2.7 pF

  • Diode 2 capacitance

    2.5 pF

  • Inter-diode capacitance maximum

    0.5 pF

SECTION 3

Triode

Characteristics

  • Triode plate voltage

    135 V

  • Triode plate current

    2.5 mA

  • Triode grid voltage

    -4.5 V

  • Triode amplification factor

    16

  • Triode transconductance

    1000 uS

  • Triode plate resistance

    16000 ohm

Other

  • Maximum triode plate voltage

    150 V

  • Maximum triode plate dissipation

    0.6 W

  • Maximum cathode current

    6 mA

Capacitance

  • Triode plate capacitance

    6.5 pF

  • Triode grid capacitance

    3 pF

  • Triode plate-grid capacitance

    3.1 pF