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Power - Pentode (NOT beam) ·Pentode

LS50

Medium-power transmitting pentode suitable for both RF and audio-frequency power amplification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.6 V / 700 mA

Description

Transmitting pentode also suitable for audio-frequency amplification.

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: 700 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: 0.0043 S
Amplification factor: 235
Max plate voltage: 1000 V
Max screen voltage: 300 V
Max plate dissipation: 40 W
Max screen dissipation: 5 W
Max grid dissipation: 1 W
Max cathode current: 230 mA

Published ratings and characteristics promoted from the approved 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

194X Wehrmacht Rohren

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Grid-cathode capacitance minimum
13.5 pF
Published datasheet value
Grid-cathode capacitance maximum
15.6 pF
Published datasheet value
Anode-cathode capacitance minimum
9 pF
Published datasheet value
Anode-cathode capacitance maximum
11 pF
Published datasheet value
Grid-anode capacitance maximum
0.09 pF
Published datasheet value
Peak anode voltage
3000 V
Published datasheet value