6440

Dual-filament Pirani thermal-conductivity vacuum gauge designed for approximately 0.1 to 5000 microns pressure.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Description

Dual-filament Pirani thermal-conductivity vacuum gauge for approximately 0.1 to 5000 microns.

General specifications

Properties common to every published source and operating point.

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1K	A	K — Cathode Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ
PIN2H	—	H — Heater Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ
PIN3G1	A	G1 — Control Grid Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ
PIN5P	A	P — Plate (Anode) Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ
PIN7H	—	H — Heater Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ
PIN8G2	A	G2 — Screen Grid Chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CQ

1 physical section, each with unique specifications.

Section 1

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published applicable promoted ratings populated; remaining device-specific values retained as parameters.

Source-dependent data

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

Published operating points and test conditions from this source.

SECTION 1