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KC3

Philips triode documented with published operating and characteristic values; available source evidence does not support a narrower functional assignment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 2 V / 210 mA

Description

KC3 is listed in the supplied valve table as a 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: 210 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 12000 Ω
Transconductance: 0.0025 S
Amplification factor: 25
Max plate voltage: 150 V
Max plate dissipation: 1.2 W
Max cathode current: 10 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 1

Triode

Other

Plate voltage
135 V
Published table operating point
Plate current
3 mA
Published table operating point
Control-grid bias
2 V
Published table operating point

Characteristic

Plate resistance
12000 ohm
Published table characteristic
Amplification factor
30
Published table characteristic
Heater/filament voltage
2 V
Published heater/filament rating
Heater/filament current
210 mA
Published heater/filament rating

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Plate current
2 mA
PlateVoltage=90V
Plate resistance
14000 ohm
PlateVoltage=90V
Amplification factor
23
PlateVoltage=90V
Transconductance
2200 uS
PlateVoltage=90V
Plate current
3 mA
PlateVoltage=135V
Plate resistance
12000 ohm
PlateVoltage=135V
Amplification factor
25
PlateVoltage=135V
Transconductance
2500 uS
PlateVoltage=135V

Other

Maximum plate voltage
150 V

Capacitance

Grid input capacitance
3 pF
Plate capacitance
3 pF