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Voltage - Triode (single high frequency) ·Triode

7554

High-mu ceramic-metal pencil triode for UHF power amplification, oscillation, and frequency multiplication to approximately 3 GHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
6.3 V / 225 mA

Description

High-mu ceramic-metal pencil triode for UHF power amplification, oscillation, and frequency multiplication to about 3000 MHz.

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
-
Nominal heater voltage
6.3 V
Nominal heater current
225 mA
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
Transconductance
0.016 S
Amplification factor
70
Max plate voltage
250 V
Max plate dissipation
2.5 W
Max cathode current
20 mA

Published ratings/characteristics promoted 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

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • MaximumOperatingFrequency

    3000 MHz

    Approximate/useful limit

  • OperationalAltitude

    100000 ft

    WithoutPressurization

Data set 02

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Amplification Factor

    70

    UHF pencil-triode service

  • Transconductance

    16000 µS

    UHF pencil-triode service

  • Grid-to-Plate Capacitance

    2.4 pF

    UHF pencil-triode service

  • Grid-to-Cathode-and-Heater Capacitance

    4.4 pF

    UHF pencil-triode service

  • Plate-to-Cathode-and-Heater Capacitance

    0.04 pF

    UHF pencil-triode service

  • Cathode Warm-Up Time

    10 s

    UHF pencil-triode service

Other

  • Maximum DC Plate Voltage

    250 V

    UHF pencil-triode service

  • Maximum DC Cathode Current

    20 mA

    UHF pencil-triode service

  • Plate Dissipation

    2.5 W

    UHF pencil-triode service