- Item 74869 - Tantalum filament bulb, ca. 1904
- Contributed by Maine Historical Society
- Item 74869
- 3026px x 4200px - 10.1"w x 14.0"h @ 300dpi | Need a larger size?
- *Credit line must read: Collections of Maine Historical Society
Early light bulb inventors competed to produce bulbs that were more efficient, gave more light, and lasted longer.Show Details
German inventors von Bolton and Feuerlien developed this bulb, with a filament made of element number 73, Tantalum, which had almost the same efficiency as metallized carbon, but was superior in strength.