- Item 74870 - Tungsten filament lamp, ca. 1909
- Contributed by Maine Historical Society
- Item 74870
- 2812px x 4200px - 9.4"w x 14.0"h @ 300dpi | Need a larger size?
- *Credit line must read: Collections of Maine Historical Society
This National Lamp Works (General Electric) bulb has a squirted and sintered tunsten filament. The process made the bulb more efficient than those with filaments made of tantalum.Show Details
However, tungsten filaments were brittle and could not be bent, so short segments were used and were attached to the support wires.