Figure 2
Alternative apparatus for crystal growth. (1) Electroresistant tube furnace, (2) continuously changeable transformer, (3) hanger (`comb' made of rigid wire), (4) Tamman test tubes, (5) weight, (6) vessel, (7) buoy (bottle with marbles, pearls or sand), (8) wedge (e.g. made of wood), (9) lowering assembly (e.g. watch movement), (10) pulley (e.g. spool of thread) and (11) scale (ruler). |