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Power - Tetrode (NOT beam) ·Tetrode-Tetrode

YL1080

Quick-heating internally neutralized double tetrode for mobile Class C transmitters. Designed for push-to-talk operation, it reaches useful emission rapidly and provides RF output around 200 MHz from a compact paired-section structure.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9A
Base pins
9
Nominal heater
16 V / 2.05 A

Description

The Mullard YL1080 is a quick-heating single-ended double tetrode for mobile Class C transmitter service.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
16 V
Nominal heater current
2.05 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

2 physical sections, each with unique specifications.

Section 1

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.033 S
Max plate voltage
300 V
Max plate dissipation
5 W

Representative of two identical RF tetrode sections.

Section 2

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.033 S
Max plate voltage
300 V
Max plate dissipation
5 W

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristics

  • Heater Voltage

    16 V

  • Heater Current

    2.05 A

  • Heater Warmup Time

    0.5 s

    Maximum

  • Maximum Intended Frequency

    200 MHz

  • Transconductance

    33000 uS

    Each section

Data set 02

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum Operating Frequency

    200 MHz

  • Maximum Plate Voltage

    300 V

  • Maximum Plate Dissipation

    5 W

    EachSection

  • RF Output Power

    14.5 W

    RepresentativePublishedMaximum

  • RF Output Power

    14.5 W

    ClassC; TelegraphyOrFMTelephony; 200MHz

  • Frequency Multiplier Output Power

    5 W

    Tripler; 200MHz