GU80

Russian high-power pentode designed for substantial power service. Manufacturer documentation identifies it as a power-class device rather than a receiving-type signal pentode.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: GIANT7
Base pins: 7
Nominal heater: 12.6 V / 10.5 A

Description

The GU80 is a high-power pentode.

Socket description

Giant 7-contact transmitting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: GIANT7
Base pins: 7
Nominal heater voltage: 12.6 V
Nominal heater current: 10.5 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

Pentode

X-ray radiationInterelectrode capacitances

Max plate voltage: 3000 V
Max screen voltage: 600 V
Max plate dissipation: 450 W
Max screen dissipation: 120 W

Full electrical-data audit completed for this tube.

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

195X Russian

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Heater voltage
12.6 V
Nominal +/-6%

Other

Heater current
10.5 A
Maximum
Anode voltage
3000 V
Maximum
Screen-grid voltage
600 V
Maximum
Anode dissipation
450 W
Maximum
Screen-grid dissipation
120 W
Maximum
Control-grid dissipation
10 W
Maximum
Envelope temperature
350 degC
Maximum