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Power - Pentode (NOT beam) ·Pentode

LV3

Versatile high-voltage pentode for amplification, transmitting, pulse, and deflection applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 550 mA

Description

A pentode intended for amplification, transmitting, pulse, or deflection service, with published heater, operating, and limiting data.

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
12.6 V
Nominal heater current
550 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

Pentode

X-ray radiationInterelectrode capacitances
Transconductance
0.015 S
Max plate voltage
1000 V
Max screen voltage
400 V
Max plate dissipation
12 W
Max screen dissipation
3.5 W
Max cathode current
100 mA

Published ratings and characteristics were promoted when unambiguous; additional operating values are preserved in TUBE_SECTION_PARAMETER.

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

194X Wehrmacht Rohren

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Input capacitance

    18 pF

  • Output capacitance

    6.5 pF

  • Grid-plate capacitance

    - to 0.2 pF

Other

  • Pulse plate voltage

    3500 V

    Pulse operation

  • Pulse plate dissipation

    18 W

    Pulse service with Ua or Ua pulse <=1000 V

  • Dynamic screen dissipation

    5 W

    Dynamic

  • Cathode peak pulse current

    2 A

    Pulse <=5 us

Data set 02

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heizspannung Ur

    12.6 V

    Heizspannung Ur 12,6 V

  • Heizstrom I;

    550 mA

    Heizstrom I; 550 mA

  • Steilheit S

    16 mA

    Steilheit S 16 mA/V

  • (NF-Scheitelwert) üg

    1 NF

    (NF-Scheitelwert) üg1NF 6 a

  • Katodenstrom Ik max

    100 mA

    Katodenstrom Ik max 100 mA

  • Impulsanodenspannung U T max

    3500 V

    Impulsanodenspannung U T max 3500 V

  • Impulskatodenstrom IL max

    2 A

    Impulskatodenstrom IL max 2 A

  • bei Impulsbetrieb Qa max

    12 W

    bei Impulsbetrieb Qa max 12 W

  • Impulsbreite t_ <

    2 S

    Impulsbreite t_ <2 S

Characteristic

  • Anodenspannung Ua

    250 V

    Anodenspannung Ua 250 V

  • Bremsgitterspannung Ug3

    0 V

    Bremsgitterspannung Ug3 0 V

  • Schirmgitterspannung Ug2

    250 V

    Schirmgitterspannung Ug2 250 V

  • Gittervorspannung Ug1 —

    7.3 V

    Gittervorspannung Ug1 —7,3 V

  • Anodenstrom I5

    72 mA

    Anodenstrom I5 72 mA

  • Schirmgitterstrom 192

    9.5 mA

    Schirmgitterstrom 192 9,5 mA

  • Anodenstrom lad 33

    76 mA

    Anodenstrom lad 33 76 mA

  • Schirmgitterstrom Ig92d 5

    12 mA

    Schirmgitterstrom Ig92d 5 12 mA

  • Gitterstrom 'g1d 0,5

    3 mA

    Gitterstrom 'g1d 0,5 3 mA