Summary
Helium- Neon tube, made by Spectra- Physics in United States of America, circa 1965.
Physical Description
Brewster windows at each end. Filament starter in side tube. Three current- limiting resistors in side- tube and in electrode circuit. Serial number 3314-803 403-2070.
More Information
-
Collecting Areas
-
Acquisition Information
Donation from Austronic Engineering Laboratories Pty Ltd, Dec 1973
-
Manufacturer
-
Inscriptions
Serial number 3314-803 403-2070.
-
Brand Names
-
Classification
-
Category
-
Discipline
-
Type of item
-
Overall Dimensions
66 cm (Length), 4.5 cm (Width), 3.5 cm (Height)
-
Exhibition Collection Management
45 mm (Length), 660 mm (Width), 35 mm (Height)
-
Keywords
Lasers, Optical Apparatus & Instruments, Thermionic Electron Valves