Figure 1
Apparatus for crystal growth. (1) Electroresistant tube furnace, (2) continuously changeable transformer, (3) hanger (`fishhook' in the shape of the letter `E' made of rigid wire), (4) Tamman test tube, (5) weight, (6) vessel (e.g. flowerpot or pitcher), (7) buoy (bottle with marbles, pearls or sand) and (8) scale (ruler). |