TY4350

Directly heated all-glass VHF power triode for transmitting service. Approximately 400 W plate dissipation and multi-kilovolt capability provide useful power for VHF oscillator and amplifier circuits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 10 A

Description

All-glass VHF power triode rated for about 400 W anode dissipation.

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: 10 V
Nominal heater current: 10 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

Transconductance: 0.004 S
Amplification factor: 35
Max plate voltage: 4000 V
Max plate dissipation: 400 W
Max grid dissipation: 20 W
Max cathode current: 600 mA

Promoted from published Mullard absolute-maximum/limiting-value and characteristic tables; service-specific limits retained in parameter rows.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

HeaterOrFilamentVoltage
10 V
HeaterOrFilamentCurrent
10 A
Grid To Plate Capacitance
6.3 pF
Input Capacitance
12.3 pF
Output Capacitance
8.5 pF
Transconductance
4 mA/V
Amplification Factor
35
MaximumOperatingFrequency
75 MHz

Other

MaxPlateVoltage
4 kV
ForcedAirCooling
MaxPlateVoltage
3 kV
NaturalCooling
MaxPlateDissipation
400 W
ForcedAirCooling
MaxPlateDissipation
300 W
NaturalCooling
MaxGridCurrent
100 mA
MaxGridDissipation
20 W
MaxCathodeCurrent
600 mA
PeakCathodeCurrentMaximum
3 A
Frequency
20 MHz
ClassC
Plate Voltage
4 kV
ClassC
Grid Voltage
-200 V
ClassC
Plate Current
450 mA
ClassC
Grid Current
75 mA
ClassC
Plate Dissipation
360 W
ClassC