00479nam a22001337a 4500008004100000040005500041080001800096245011900114260003600233300001700269650001300286653002100299700002500320230808b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a621.385.1(05)  aAdvances in electron tube techniques c/ Pergamon Press, proceedings of the 5th national conference September 1960  aOxford: bPergamon Press,c1961  aviii, 235p.   aScience   aTube techniques   aSlater, David (Ed.)