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ASP2

Argon-filled cold-cathode tetrode designed as a stroboscopic photographic light source, producing intense short-duration flashes through controlled gas discharge.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: InternationalOctal
Socket code: IO
Base pins: 8
Nominal heater: -

Description

Argon-filled cold-cathode tetrode used as a stroboscopic photographic light source.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: InternationalOctal
Socket code: IO
Base pins: 8
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

InternationalOctal - 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

Thyratron

X-ray radiationInterelectrode capacitances

Max plate voltage: 380 V

Promoted fields were populated only where the Ferranti sheet maps cleanly to the locked schema; additional ratings and operating values are retained 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

1963 Ferranti

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Anode voltage minimum
270 V
Working
Peak inverse anode voltage maximum
350 V
Average anode current maximum
80 mA
Discharge capacitance maximum
16 uF
Average trigger current maximum
10 mA
Minimum series discharge resistance
0.3 Ohm
Flashing frequency maximum
250 pps
Supply voltage
350 V
StroboscopicLightSource
Trigger pulse amplitude minimum
150 V
StroboscopicLightSource

Characteristics

Static striking voltage minimum
75 V
Static striking voltage maximum
120 V
Peak luminous intensity
80 cd
C=2uF;V=350V
Flash duration
20 us
HalfPeakLightOutput