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Product > Vacuum Measurement > Ionization Guage Tubes
 
Vacuum Measurement
Ionization Guage Tubes - Nude Ionization - Bayard-Alpert Guage
Bayard-Alpert GuageBayard-Alpert Guage Filaments
Bayard-Alpert Guage Filaments Vacuum Measurement Ionization Tubes Nude
Bayard-Alpert Guage Filaments Vacuum Measurement Ionization Tubes Nude
Features
  • High Temperature
  • UHV compatible
  • Replaceable filament assemblies for above ionization gauge tubes


Vacuum Specifications
 Vacuum Range 10-3 to 4x10-10 Torr
 Maximum Operating Pressure  1x10-3 Torr
 Sensitivity ±20%  10 Torr
 X-ray Limit  4x10-10 Torr
Construction Specifications
 Flange  304ss
 Grid Molybdenum-clad Platinum
 Filament Single: Iridium
Dual: Tungsten
 Collector Tungsten
 Shield Coating  Platinum
 Base Leads  Soft Nickel, 0.060" dia.
 Collector Lead  Soft Nickel, 0.040" dia.
Operating Specifications
 Collector -30 Volts DC
 Grid  +150 Volts DC
 Filament +30 Volts DC
 Filament Voltage 3 - 5 Volts
 Filament Current  4 - 6 Amps
 Degas by I2R 70 Watts
 Emission  10 mA
 Max. Bakeout Temperature 450ºC
For conversion tables click here

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There are 2 parts in this category. Scroll down to browse the result tables
 For more details, available options and accessories click on desired Part Number link.

All "In Stock" parts ships same business day as ordered. Lead Time indicates business days. Please Note that cut off time for same day shipment is 1:30 p.m. Pacific Standard Time. Prices and specifications are subject to change without notice. See full terms of sale here.

Drawings download if available are indicated by in the Part Number column. Click on to go to Downloads Page

REPLACEMENT FORDESCRIPTIONWT LBPart NumberUOMList PriceNet PriceLead TimeQty
BATTTWIN TUNGSTEN FILAMENT, BAYARD-ALPERT GAUGE3/4432001
REF# BART		Pair$54.00$54.0040 days
BAIRSINGLE IRIDIUM FILAMENT, BAYARD-ALPERT GAUGE3/4432003
REF# BARI		Pair$113.00$113.0015 days

Tube Interchange / Cross Reference Table
Several of the MDC tubes will directly interchange with models of various manufacturers as noted in the Cross Reference Table. While tubes may have identical electrical specifications with tubes from other manufacturers not listed, pin-out dimensions may vary.
 

Replacement for

MDC Reference

MDC Part Number
Description Granville-Phillips Perkin-Elmer Varian
SINGLE IRIDIUM FILAMENT, BAYARD-ALPERT GAUGE 274028 - - BAIR 432002
REPLACEMENT FILAMENT FOR 432002 274029 - - BARI 432003
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