6246

Water-cooled very-high-power triode, co-designated 508, for industrial RF heating and AM transmitter service. Rated for 25 kW plate dissipation and 15 kV plate voltage for major industrial and broadcast installations.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 30 V / 80 A

Description

6246 is a Triode device in the supplied Amperex literature. Co-designation of 508; water-cooled very-high-power triode for RF heating and AM transmitter service. Published ratings, operating points, capacitances, pulse data, or industrial service limits were preserved in the technical output as applicable.

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: 30 V
Nominal heater current: 80 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: 0.017 S
Amplification factor: 28
Max plate voltage: 15000 V
Max plate dissipation: 25000 W

Published promoted ratings/characteristics captured where applicable; additional source values preserved 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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum frequency at full ratings
40 MHz
Maximum plate voltage, Class B AF
15000 V
ClassB
Maximum signal plate input, two tubes
80 kW
ClassB,TwoTubes
Maximum signal power output, two tubes
61.5 kW
ClassB,TwoTubes

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
15000 V
RFAmplifierOrOscillator; ClassC; Telegraphy
Plate current
3.75 A
RFAmplifierOrOscillator; ClassC; Telegraphy
RF output power
40000 W
RFAmplifierOrOscillator; ClassC; Telegraphy
Grid voltage
-900 V
RFAmplifierOrOscillator; ClassC; Telegraphy
Grid current
420 mA
RFAmplifierOrOscillator; ClassC; Telegraphy
Maximum frequency at full input rating
40 MHz

Capacitance

Grid-to-plate capacitance
17 pF
Grid-to-filament/cathode capacitance
26 pF
Plate-to-filament/cathode capacitance
2.5 pF