0 E 2 E E 3 lg O 2 g ig m F O ii EE K 2 Z gg 6 2 11 1 IF 2 rx E gf 23 Sm nm s xs g Wg V i 2 Q 4 V w ww Q BX R X A 4 5 L2 2 2 l Q 22 Q 5 X IR Q3 E 53 K 2 RMK in Q J g Q Y EE I F git g 4 if 4 fg 5 Mugg q E z E O Z S 29 5 G EE 5 s gg zE E m8E g xii 5 F A AN IENNA TUBE TYPE as nu 1M c nu 13 uma REVISED FEBRUARY I I967