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FU7

Power tetrode designed for RF or AF power amplification, frequency multiplication, oscillation, and plate modulation. A versatile transmitter-class power device.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 900 mA

Description

Power tetrode for RF/AF power amplification, frequency multiplication, oscillation, and plate modulation.

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: 900 mA
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

Tetrode

X-ray radiationInterelectrode capacitances

Max plate voltage: 600 V
Max screen voltage: 300 V
Max plate dissipation: 25 W
Max screen dissipation: 3.5 W

Published limits promoted from translated source.

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

198X Shuguang

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
900 mA
Nominal
Maximum Plate Voltage
600 V
Maximum Screen Voltage
300 V
Maximum Plate Dissipation
25 W
Maximum Screen Dissipation
3.5 W