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YD1203

Vapor-cooled high-power RF industrial triode designed for Class C oscillator service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.2 V / 255 A

Description

Vapour-cooled high-power RF industrial triode. Published filament, capacitance, limiting-rating, and representative Class-C industrial oscillator data were extracted from the supplied Philips sheet.

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: 12.2 V
Nominal heater current: 255 A
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: 200 Ω
Transconductance: 0.15 S
Amplification factor: 30
Max plate voltage: 14400 V
Max plate dissipation: 80000 W
Max cathode current: 18 A

High-power RF triode; published principal characteristic and limiting values promoted.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Filament voltage
12.2 V
Filament current
255 A
Transconductance
150000 uS
Amplification factor
30

Capacitance

Anode to filament capacitance
2.7 pF
Grid to filament capacitance
170 pF
Anode to grid capacitance
55 pF

Other

Maximum anode voltage
14400 V
Maximum anode current
18 A
Maximum anode dissipation
80000 W
Operating frequency
30 MHz
IndustrialClassC
Operating anode voltage
12000 V
IndustrialClassC;Frequency=30MHz
Operating anode current
13 A
IndustrialClassC;Frequency=30MHz
Anode output power
123500 W
IndustrialClassC;Frequency=30MHz
Frequency for full ratings
100 MHz

Construction

Cooling system
Vapour