TY1215A

Forced-air-cooled high-power RF transmitting triode for demanding oscillator and power-amplifier service. Approximately 15 kW plate dissipation and 13 kV capability provide substantial continuous professional RF power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 8 V / 130 A

Description

Forced-air-cooled high-power RF transmitting triode.

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: 8 V
Nominal heater current: 130 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: 0.025 S
Amplification factor: 33
Max plate voltage: 13000 V
Max plate dissipation: 15000 W
Max grid dissipation: 750 W
Max cathode current: 5.8 A

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
8 V
HeaterOrFilamentCurrent
130 A
Grid To Plate Capacitance
27 pF
Input Capacitance
45 pF
Output Capacitance
0.6 pF
Transconductance
25 mA/V
TransconductanceHighCurrent
40 mA/V
PlateVoltage=2kV;PlateCurrent=22A
Amplification Factor
33
Cooling
Forced air

Other

MaximumOperatingFrequency
30 MHz
MaxPlateVoltage
13 kV
MaxCathodeCurrent
5.8 A
PeakCathodeCurrentMaximum
28 A
MaxGridVoltageMagnitude
1.5 kV
MaxGridCurrent
1 A
MaxPlateDissipation
15 kW
MaxGridDissipation
750 W
Frequency
30 MHz
ClassC
Plate Voltage
12 kV
ClassC
Plate Current
4.5 A
ClassC
Grid Voltage
-1 kV
ClassC
Grid Current
800 mA
ClassC
DriveVoltagePeak
1.6 kV
ClassC
DriverPower
1.25 kW
ClassC
Plate Dissipation
13 kW
ClassC
Efficiency
76 %
ClassC
Power Output
41 kW
ClassC