1941 Ohmite Mfg. Co. Ohm's Law Calculator 0.1 To 10 Megohms Perry Graf Corp. Usa

US $91

  • Green Bay, Wisconsin, United States
  • May 27th
vintage OHMITE Ohm's law slide rule calculator.  This manually solves any ohm's law problem with one setting of the slide.  It can solve for volts, amperes, watts, and resistance.  Its working range is from 0.1 to 1x10^6 ohms.  It was made by Perry Graf Corporation for Ohmite Manufacturing Company.  CHICAGO IL USA It is copyright 1941.   The slide rule calculator is approximately 9-1/8 by 4-1/8 inches in size.  This is made of heavy pressed cardboard.  Good preowned condition. Some pulls on corners but no major flaws. 

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