WHAT'S NEW FOR THE 'BO'S? ~~~~ ~(QJ(QJ~Q ALSO NEW: AVAB MODULAR DIMMERS See them at this year's USITT Convention in Kansas Cit~ March12-15. AVABffi\~~~~~ffi\ 1714 Stockton St / San Francisco. CA 84133 /(415J421'3562 USITT Spring, 1980 Theatre Design & Technology 33