GU48

RF power triode for operation through roughly 75 MHz. Approximately 300 W plate dissipation and multi-kilovolt capability provide moderate transmitter power for amplifier and oscillator circuits across HF and lower VHF.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / -

Description

RF power triode for operation through 75 MHz. Extracted from the English electrical and limit-operating tables of the bilingual datasheet.

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: 10 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: 3000 V
Max plate dissipation: 300 W

English text primary; Russian used only to verify/repair 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

Characteristic

Amplification Factor
29 to 41

Capacitance

Input Capacitance
11 to 15 pF
Output Capacitance
9 to 13 pF
Transfer Capacitance
5.5 to 8 pF

Other

Minimum Output Power
700 W
35-40MHz
Output Power after 1000 h
550 W
minimum
Filament Starting Current
15 A
Operating Frequency
75 MHz