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Power - Pentode (NOT beam) ·Pentode

33

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5K
Socket code
UX5
Base pins
5
Nominal heater
2 V / 260 mA

Description

Directly heated output power pentode.

Socket description

Small 5-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5K
Socket code
UX5
Base pins
5
Nominal heater voltage
2 V
Nominal heater current
260 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5K - 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
55000 Ω
Transconductance
0.0017 S
Amplification factor
90
Max plate voltage
180 V
Max screen voltage
180 V

Published promoted fields populated by semantic section ownership.

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

1932 Cunningham Radio Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Grid-plate capacitance

    0.9 pF

    Published direct interelectrode capacitance

  • Undistorted power output

    700 mW

    Published operating characteristic

  • Load resistance

    7000 ohm

    Published operating characteristic

Data set 02

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum plate voltage

    180 V

    Published datasheet rating

  • Maximum screen voltage

    180 V

    Published datasheet rating

  • Plate voltage

    180 V

    ClassA

  • Screen voltage

    180 V

    ClassA

  • Control-grid bias

    18 V

    ClassA

  • Plate current

    22 mA

    ClassA

  • Screen current

    5 mA

    ClassA

  • Load resistance

    6000 ohm

    ClassA

  • Power output

    1.4 W

    ClassA

Characteristic

  • Plate resistance

    55000 ohm

    Published datasheet characteristic

  • Transconductance

    1700 µS

    Published datasheet characteristic

  • Amplification factor

    90

    Published datasheet characteristic

  • Heater/filament voltage

    2 V

    Published heater/filament rating

  • Heater/filament current

    260 mA

    Published heater/filament rating

Data set 03

193X Cunningham

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater/filament voltage

    2 V

    Published nominal

  • Heater/filament current

    260 mA

    Published nominal

  • Transconductance

    1800 uS

    Published characteristic

Data set 04

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater or filament voltage

    2 V

    Published nominal value

  • Heater or filament current

    260 mA

    Published nominal value

  • Transconductance

    1700 µS

    Published representative/high operating value

  • Amplification factor

    90

    Published representative/high operating value

  • Plate resistance

    55000 ohm

    Published representative/high operating value

Other

  • Audio power output

    1.4 W

    SingleTube; 180 V plate

  • Load resistance

    6000 ohm

    SingleTube; 180 V plate

Data set 05

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • HeaterOrFilamentVoltage

    2 V

  • HeaterOrFilamentCurrent

    260 mA

Data set 06

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Input capacitance

    8 pF

    Section1

  • Output capacitance

    2 pF

    Section1

Other

  • Plate voltage

    180 V

    ClassA

  • Screen voltage

    180 V

    ClassA

  • Control-grid voltage

    -18 V

    ClassA

  • Plate current

    22 mA

    ClassA

  • Screen current

    5 mA

    ClassA

  • Load resistance

    6000 Ω

    ClassA

  • Power output

    1.4 W

    ClassA

Characteristic

  • Plate resistance

    55000 Ω

    ClassA

  • Transconductance

    1700 µS

    ClassA

Data set 07

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Power Output

    1.4 W

    ClassA1