. American telephone practice . FIG. LAMP MOUNTING. impact from the plugs, and for that reason a perforated metal shieldis arranged in connection with the brass portion of this cap, as shownin this cut. It has been said that the same type and size of lamp is used forpilot lamps as for line and supervisory lamps, but that in order to. FIG. .-PILOT LAMP MOUNTING. make a more luminous signal a larger and better lens is construction of the pilot lamp mounting, as used by the Strom-berg-Carlson Company, is shown in Figs. 368 and 360. which showsthe mounting assembled a
. American telephone practice . FIG. LAMP MOUNTING. impact from the plugs, and for that reason a perforated metal shieldis arranged in connection with the brass portion of this cap, as shownin this cut. It has been said that the same type and size of lamp is used forpilot lamps as for line and supervisory lamps, but that in order to. FIG. .-PILOT LAMP MOUNTING. make a more luminous signal a larger and better lens is construction of the pilot lamp mounting, as used by the Strom-berg-Carlson Company, is shown in Figs. 368 and 360. which showsthe mounting assembled and in its various parts. The lamp jackitself in this case mounts on the rear face of the wood panel at the 522 AMERICAN TELEPHONE PRACTICE. lower portion of the jack space, while the large brass bushing whichserves to carry the lens screws into the face of the board from thefront. The construction of switchboard cords and plugs has been takenup to some extent in previous chapters, and the practice in this doesnot differ materially as applied to multiple boards from that as ap-
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