00301nam a2200109Ia 4500 190829s9999||||xx |||||||||||||| ||und|| Arguimbau, Lawrence Baker Vacuum-Tube Circuits And Transistors Asia Publishing House Bombay 1960 Vacuum Tubes BK 8317 8317 0 0 1 0 PHY GBCTL GBCTL BOX 2020-10-12 SHELF NO. 4C 621.384132 ARG/V 508/60 DMG