| Cabinet D1 |
| D1.H | Alligator clip cables [17], [18], [19] | |
| D1.0 | Paper towels | Extra Immersion Heaters |
| D1.1 | Hydrogen Discharge Tubes [24] | Spectral Discharge Power Supplies [24] |
| D1.2 | Multi Slit Diffraction Screen [23] | Spectral Discharge Power Supplies [24] |
D1.3 |
Diffraction Gratings [24] Projection Screen [23], [24] |
Metal Collimator Slits on holders [24] |
| D1.4 | Wooden blocks [23], [24] |