GU88P

Directly heated metal-ceramic power triode for RF oscillator and amplifier service. Evaporation cooling of the anode and forced air elsewhere permit an exceptional approximately 250 kW plate-dissipation rating at up to 12 kV.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 26 V / -

Description

The GU-88P is a directly heated metal-ceramic power triode used as an RF oscillator and power amplifier, with evaporation cooling for the anode and forced-air cooling for the other envelope elements.

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: 26 V
Nominal heater current: -
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

Max plate voltage: 12000 V
Max plate dissipation: 250000 W
Max grid dissipation: 7000 W

English text used as primary source; Russian text used only to repair/check ambiguous OCR.

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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Operating Frequency
10 MHz
Maximum Anode Voltage
12000 V
Maximum Anode Dissipation
250000 W
Maximum Grid Dissipation
7000 W
Filament Starting Current Peak
1150 A
Anode Voltage with Anode Modulation
11000 V
Output Power Minimum
500 kW
Frequencies up to 22 MHz

Characteristic

Filament/Heater Voltage
26 V
Static Amplification Factor
36 to 55