| Cabinet D2 |
| D2.H | Alligator clip cables [17], [18], [19] | |
| D2.0 | Old DC Variable Power Supplies | |
| D2.1 | Tangent Galvanometers [21] | Small Compasses [20] Large Compasses [21] |
| D2.2 | Tangent Galvanometers [21] | |
D2.3 |
Dip Needle Compasses [21] | Tangent Galvanometer Stands [21] |
| D2.4 | Rheostats [21] | |
| D2.5 | Double Pole-Double Throw Switch [21] |