computer switch board power plug x pc motherboard wiring Power Switch Plug clip art 電源 開關 插頭 電源開關插頭剪貼畫
This is a hard to find power plug that is used on the early Loran-C navigation units from the 1980s. The correct number is Amphenol 57-10140. 羅蘭 導航 安費諾 羅蘭股電源插頭
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From Practice and science of standard barbering (c1951) Author: Thorpe, Sidney Coyne from archive.org 電力 電氣 電源 電源插線板
home outline bad electric hazard plug electricity frayed accident shock unsafe electrocution electric-shock Frayed Plug Electric Hazard clip art 磨損 插頭 電動 磨損的插頭電危害剪貼畫