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

8429

High-power transmitting tetrode designed for RF power amplification, linear amplification, oscillation, modulation, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
15 V / 16 A

Description

Exceptionally linear coaxial external-anode power tetrode for single-sideband linear-amplifier service to 60 Mc.

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
15 V
Nominal heater current
16 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
0.08 S
Amplification factor
8.5
Max plate voltage
5500 V
Max screen voltage
1000 V
Max plate dissipation
4000 W
Max screen dissipation
200 W
Max grid dissipation
10 W
Max cathode current
2 A

Promoted ratings and characteristics mapped from source tables.

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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Capacitance

  • Grid1 To Plate Capacitance

    0.2 pF

    Published direct interelectrode capacitance

  • Input Capacitance

    115 pF

    Published direct interelectrode capacitance

  • Output Capacitance

    20 pF

    Published direct interelectrode capacitance