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QB275

Transmitting power tetrode designed for RF amplification, linear/SSB service, oscillation, modulation, broadcasting, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 1.3 A

Description

Tetrode vacuum tube. Intended for power amplification service; published RF/AF operating data and limiting ratings are captured in the technical tables.

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: 1.3 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

Tetrode

X-ray radiationInterelectrode capacitances

Max plate voltage: 2000 V
Max screen voltage: 500 V
Max plate dissipation: 75 W
Max screen dissipation: 25 W

Published section data from supplied datasheet.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Anodenverlustes (W), der bis
75 W
Anodenverlustes (W), der bis 75 W betragen darf:
Anodenspannung ... V., = 1500
-2000 V
Anodenspannung ... V., = 1500-2000 V
Zulissiger Anodenverlust .......... W,
75 W
Zulissiger Anodenverlust .......... W, =75W%)
Gepriifter Anodenverlust .......... W,
150 W
/ / / Gepriifter Anodenverlust .......... W, = 150W