| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 9A30.00 | Slide Projectors | | |
| 9A30.05 | mobile screen | PIRA 1000 | |
| 9A30.05 | mobile screen | 9A30.05 | |
| 9A30.06 | projection screen | 34-2.4 | Drafting linen makes a good projection screen. |
| 9A30.10 | 35 mm projector | PIRA 1000 | |
| 9A30.10 | 35mm projector | 9A30.10 | |
| 9A30.11 | two 35 mm projectors | PIRA 1000 | |
| 9A30.11 | two 35mm projectors | 9A30.11 | |
| 9A30.15 | 35 mm to go | PIRA 1000 | |
| 9A30.15 | 35mm to go | 9A30.15 | |
| 9A30.20 | lantern projector | PIRA 1000 | |
| 9A30.20 | 3 1/4 x 4 projector | 9A30.20 | |
| 9A30.21 | projection lanterns | L-1 | On using projection lanterns to magnify demonstrations. Diagram. |
| 9A30.30 | light pointer | PIRA LOCAL | Add abstract in Handbook.FM |