disc and tape recordings, maps, globes, display ma-
 terials, and other materials to be shared among class-
 rooms.
 b. Storing audio-visual equipment motion-picture pro-
 jectors, filmstrip projectors, record players, tape re-
 corders, and screens
 c. Storing supplies for projectors lamps, belts, cords,
 reels
 d. Processing new materials
 e. Inspecting and repairing materials
 f. Previewing films and filmstrips and listening to record-
 ings
 g. Teaching projectionists the care and use of equipment

2. Space Allocation
 Minimum of 200 square feet and, if used for previewing,
 should be a long, narrow room (In very small schools
 it may be necessary to store audio-visual equipment in
 the work-storage area, adding suitable amount of space
 according to material to be housed.)
3. Placement
 Adjacent to and opening into work area with outside en-
 trance to corridor or outside of building so that audio-
 visual equipment can easily be taken in and out of storage
 area

4. Equipment
 a. Standing-height work counter, 36" to 42" high, with
 top of plastic laminate or similar material and storage
 area for audio-visual equipment underneath and cab-
 inets for supplies above. Storage cabinets for audio-
 visual equipment should accommodate motion-picture
 projectors, filmstrip projectors, opaque and overhead
 projectors, record players, tape recorders, and projec-
 tion screens. This cabinet space should be low, not
 over 4" off floor, so that this heavy equipment does not
 have to be lifted far off the floor. Motion-picture pro-
 jectors may be kept on roller tables for which space
 must be provided. (See Appendix, Drawing 10.)
 Amount of audio-visual materials and equipment to be