TBL614

Forced-air-cooled Philips industrial RF-generator triode with directly heated filament. Rated for approximately 10 kW plate dissipation and 8 kV plate voltage for substantial oscillator and RF power-amplifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 130 A

Description

TBL614 is a Philips forced-air-cooled industrial RF-generator transmitting triode. Its datasheet specifies direct-filament operation, RF power ratings, cooling requirements, capacitances and representative operating conditions.

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: 6.3 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: 0.023 S
Amplification factor: 17.5
Max plate voltage: 8000 V
Max plate dissipation: 10000 W
Max cathode current: 4 A

Published filament data, capacitances, typical characteristics, limiting values and RF operating conditions 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

1963 Philips Electron Tubes Handbook V4

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Filament voltage
6.3 V
DirectlyHeated
Filament current
130 A
DirectlyHeated
Amplification factor
17.5
Published
Transconductance
23000 µS
Published

Other

Maximum plate voltage
8000 V
Published limit
Maximum plate dissipation
10000 W
Published limit
Maximum plate/cathode current
4 A
Published limit
Plate voltage
6000 V
IndustrialRF
Plate current
3.3 A
IndustrialRF
Plate input power
19.8 kW
IndustrialRF
Plate dissipation
5.5 kW
IndustrialRF
Power output
14.3 kW
IndustrialRF
Alternate maximum plate dissipation
15 kW
Special cooling condition

Capacitance

Plate-to-cathode capacitance
1.2 pF
Published
Grid capacitance
44.5 pF
Published
Grid-to-plate capacitance
33.5 pF
Published

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Anode voltage
6000 V
Anode current
2.5 A
Transconductance
23000 µS
Amplification factor
17.5
Anode capacitance
1.2 pF
Grid capacitance
44.5 pF
Anode-grid capacitance
33.5 pF
Maximum anode voltage
8000 V
Maximum anode dissipation
10000 W