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Tube Tinker — Electron Tube Database
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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

Q4501

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
5 V / 14 A

Description

Radiation-cooled tetrode for RF power and amplifier service.

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
5 V
Nominal heater current
14 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
Transconductance
0.045 S
Max plate voltage
4000 V
Max screen voltage
800 V
Max plate dissipation
450 W
Max cathode current
400 mA

Published ratings and characteristics promoted where reliably recoverable from the approved sheet.

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

1969 Brown Boveri

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum Frequency

    120 MHz

  • RF/Output Power

    1160 W

    Quick Reference, stated operating class where applicable

  • Maximum Anode Current

    400 mA