Short communication

• 31 January 1975
• journal article
• research article
• Published by Elsevier in Vacuum
• Vol. 25  (1) , 13-14
• https://doi.org/10.1016/0042-207x(75)91059-3

Abstract

Keywords

• COMMUNICATION AN INEXPENSIVE
• HIGH VACUUM
• EASILY CONSTRUCTED
• AXIAL FEEDTHROUGH
• CO AXIAL