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4686

Argon-filled heated gas triode designed for time-base oscillator service, generating repetitive timing or sweep waveforms through controlled gas-discharge operation.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: P30-IX
Socket code: -
Base pins: -
Nominal heater: 4 V / 1.2 A

Description

Argon-filled heated gas triode for time-base oscillator service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: P30-IX
Socket code: -
Base pins: -
Nominal heater voltage: 4 V
Nominal heater current: 1.2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

P30-IX - 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 cathode current: 3 mA

Promoted only from clearly identified published characteristics/limits; additional operating, capacitance, regulator, gas-tube, and push-pull data retained as section parameters.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Construction

Gas filling
Argon
Section1

Capacitance

Grid-to-anode capacitance
2.2 pF
Section1
Anode-to-cathode capacitance
3.2 pF
Section1
Grid-to-cathode capacitance
3.8 pF
Section1

Characteristic

Arc extinction voltage
17 V
Approximate
Minimum grid-circuit resistance per volt peak grid voltage
1000 Ω
TimeBase
Striking-voltage to grid-voltage ratio
21
TimeBase

Other

Maximum peak voltage between electrodes
350 V
TimeBase
Maximum peak anode voltage
300 V
TimeBase
Maximum peak anode current
300 mA
TimeBase
Maximum mean anode current
3 mA
OscillatingCondition
Maximum grid-circuit resistance
0.5 MΩ
TimeBase
Maximum filament-to-cathode voltage
100 V
CathodePositive
Maximum attainable frequency
50000 Hz
TimeBase