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6L50S

Pulse-rated power pentode for high-voltage switching or pulse amplification, capable of kilovolt operation with pulse duration limited to roughly 10 microseconds.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 1 A

Description

Pulse-rated power pentode for high-voltage pulse operation.

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: 6.3 V
Nominal heater current: 1 A
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: 0.0035 S
Max plate voltage: 3000 V
Max screen voltage: 800 V
Max plate dissipation: 18 W
Max screen dissipation: 3 W
Max cathode current: 1.5 A

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed where applicable.

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

1969 Tesla Manual of Electronic Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Heater voltage
6.3 V
Published nominal value
Heater current
1 A
Published nominal value
Transconductance
3500 µS
Published operating characteristic

Other

Maximum plate dissipation
18 W
Published maximum rating
Maximum pulse duration
10 us
Published pulse limit