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6979

Forced-air-cooled external-anode tetrode with brazed radiator, designed for RF Class-C service and interchangeable with 4X150A where greater plate dissipation is required.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6 V / 2.6 A

Description

Forced-air-cooled external-anode tetrode with brazed radiator, interchangeable with 4X150A where higher plate dissipation is needed.

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 V
Nominal heater current: 2.6 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

Beam Power

X-ray radiationInterelectrode capacitances

Amplification factor: 5
Max plate dissipation: 250 W

External-anode power tetrode; source provides transmitting-service operating data.

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 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Maximum plate dissipation
250 W
Plate voltage
2000 V
RF ClassC
Plate current
250 mA
RF ClassC
Power output
410 W
RF ClassC
Grid current
12 mA
RF ClassC
Screen voltage
250 V
RF ClassC

Characteristic

Maximum frequency
250 MHz
FullInput
Grid-to-plate capacitance
0.03 pF
Input capacitance
15.7 pF
Output capacitance
4.5 pF