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Voltage - Triode (single high frequency) ·Triode

5675

Coaxial metal-glass pencil UHF power triode for RF amplification, oscillation, and frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5675
Socket code
-
Base pins
4
Nominal heater
6.3 V / 135 mA

Description

Coaxial metal-glass pencil-type UHF medium-mu power triode for RF amplification, oscillation, and frequency multiplication.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5675
Socket code
-
Base pins
4
Nominal heater voltage
6.3 V
Nominal heater current
135 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5675 - 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
Plate resistance
3200 Ω
Transconductance
0.0062 S
Amplification factor
20
Max plate voltage
300 V
Max plate dissipation
5 W
Max cathode current
30 mA

UHF medium-mu pencil triode

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    135 mA

Other

  • MaximumOperatingFrequency

    3300 MHz

Data set 02

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    135 mA

Other

  • MaximumOperatingFrequency

    3000 MHz

  • Power Output

    475 mW

    CathodeDriveOscillator;1700MHz

Data set 03

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Input Capacitance

    2.3 pF

  • Output Capacitance

    0.09 pF

  • Grid-to-Plate Capacitance

    1.3 pF

Other

  • Plate Voltage

    135 V

    ClassA

  • Cathode Resistor

    68 ohm

    ClassA

  • Plate Current

    24 mA

    ClassA

Data set 04

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

  • Application

    UHF Class-C RF amplifier / oscillator

    ClassC

Other

  • Maximum useful frequency

    3000 MHz

Data set 05

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    6.3 V

    Nominal

  • Plate voltage

    300 V

    Published operating table; OperatingPoint1

  • Frequency for operation at full ratings

    1700 MHz

    Continuous commercial service

  • Maximum plate-seal temperature

    175 C

Characteristic

  • Plate current

    31 mA

    Published operating table; OperatingPoint1

  • Plate current

    25 mA

    Published operating table; OperatingPoint1

Data set 06

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    135 V

    AverageStatic

  • Cathode resistor

    68 ohm

    AverageStatic

  • Plate current

    24 mA

    AverageStatic

  • Frequency for full ratings

    1700 MHz

    RF

  • Maximum operating frequency reduced ratings

    3000 MHz

    RF

  • Useful power output

    475 mW

    RFAmplifier;CathodeDrive

Characteristic

  • Transconductance

    6200 uS

    AverageStatic

  • Amplification factor

    20

    AverageStatic

  • Minimum preheat time

    60 s

Capacitance

  • Grid-to-plate capacitance

    1.4 pF

  • Grid-to-cathode capacitance

    2.4 pF

  • Plate-to-cathode capacitance

    0.09 pF

Data set 07

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum DC Plate Voltage

    300 V

    UHF pencil triode

  • Maximum Cathode Current

    30 mA

    UHF pencil triode

  • Plate Dissipation

    5 W

    UHF pencil triode

  • Typical Plate Voltage

    135 V

    UHF pencil triode

Characteristics

  • Amplification Factor

    20

    UHF pencil triode

  • Transconductance

    6200 µS

    UHF pencil triode

  • Grid-to-Plate Capacitance

    1.4 pF

    UHF pencil triode

  • Grid-to-Cathode Capacitance

    2.4 pF

    UHF pencil triode

  • Plate-to-Cathode Capacitance

    0.09 pF

    UHF pencil triode