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Specialized - Switching Tube ·ThermalDelaySwitch

DLS17

Vacuum thermal-delay switch. Controlled heater warm-up actuates internal contacts after a time interval for sequencing and protective control.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 1.5 A

Description

Vacuum thermal delay switch.

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
4 V
Nominal heater current
1.5 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

ThermalDelaySwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

ThermalDelaySwitch

Characteristic

  • Minimum delay time

    30 s

  • Maximum delay time

    90 s

Other

  • Maximum switch current at 250 V

    6 A

  • Maximum switch current at 1000 V

    200 mA