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RX885

Heated gas-triode thyratron for sweep-oscillator service. Controlled gas discharge provides relaxation timing and switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: 8F
Socket code: -
Base pins: 8
Nominal heater: 2.5 V / 1.5 A

Description

Heated gas-triode thyratron intended for sweep-oscillator service, with 350 V inverse-anode and 300 mA peak-cathode ratings.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8F
Socket code: -
Base pins: 8
Nominal heater voltage: 2.5 V
Nominal heater current: 1.5 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8F - 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: 75 mA

Thyratron section. Maximum average cathode current is promoted in amperes; inverse-anode and peak-cathode limits are retained as explicit section parameters because no dedicated promoted thyratron columns exist.

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

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Heater voltage
2.5 V
SweepOscillator
Heater current
1.5 A
SweepOscillator
Maximum peak inverse anode voltage
350 V
SweepOscillator
Maximum peak cathode current
300 mA
SweepOscillator
Maximum average cathode current
75 mA
SweepOscillator