00481nam a22001337a 4500008004100000040005500041080001800096245012000114260003700234300001700271650001300288653002100301700002500322230808b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a621.385.1(05)  aAdvances in electron tube techniques c/ Pergamon Press, proceedings of the 6th national conference September 1962   aOxford: bPergamon Press, c1961  aviii, 280p.   aScience   aTube techniques   aSlater, David (Ed.)