Light and color comparison for incandescent lamps (1907)
Fargo, Roy Newton · leaf 52
. Mean Tantalum Filament. L 110 100 64.3 90.0 25.7 R n n 46.0 It 44.0 L It It 63.8 It 26.2 34.7 R ti II 46.5 It 43.5 L II It 64.0 n 26.0 R II If 46.7 11 43.3 Carbon Pilament. L It II 60.5 90.0 29.5 R n tt 52.8 It 37.2 L It tr 60.5 It 29.5 33.7 R It II 51.5 It 38.5 L tt tt 60.4 tt 29.6 R II II 52,0…
Incandescent lamps · Color · Light · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.