Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 141
on Tantalum Lamp (iKNKKM. Kl-KCMKir (o. MKIlts. 8UK or Uui.li . -1 i>i* ri.ii 1.11> DiAMKTt.UBVLU IN In< •>r II t H Rmavuhn Round .;.K» .-, 1> . ■10 wutt •> f. MK) .VI • •> ( .\M .SIK) W 1(H) S<K) •10 wutt ■•«i .\:*\ MH» HO IIH) MHJ ion 16 ELECTRIC LIGHTING T/vBLE IVData on… … Fig. 13. Vertical Distributiou Curve Without Reflector. The Tungsten Lamp. Following closely upon the developmentof the tantalum lamp came the tungsten lamp. Tungsten possessesa very high melting point and an indirect method is employed informing filaments for incandescent lamps. There are several…
Architecture · Building
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