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LS52

Lorenz short-wave transmitting pentode for continuous-wave and pulsed RF communications service.

Directly heatedCold cathodeCommon cathodeDissimilar

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

Description

Lorenz LS52 short-wave transmitting pentode for continuous-wave and pulsed RF service, with a 12.6 V indirectly heated oxide cathode and published RF operating 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: 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: 0.0045 S
Max plate voltage: 800 V
Max screen voltage: 400 V
Max plate dissipation: 25 W
Max screen dissipation: 6 W
Max cathode current: 130 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

Grid-cathode capacitance
12 pF
Plate-cathode capacitance
4.2 pF
Grid-plate capacitance
- to 0.09 pF

Other

Pulse maximum plate voltage
2000 V
Pulse operation
Pulse maximum screen voltage
800 V
Pulse operation
Effective cathode pulse current
200 mA
Pulse operation
Cathode peak pulse current
1.4 A
Pulse operation; 10 us
RF output power
600 W
Pulse; wavelength 1.2 m; Ua=1500 V; Ug2=700 V; Ug1=-200 V