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SIGNAL CORP U.S. ARMY Zero Collector Weston Electrical Instrument Corp Model 433, US $45 – Picture 0
SIGNAL CORP U.S. ARMY Zero Collector Weston Electrical Instrument Corp Model 433, US $45 – Picture 0

Signal Corp U.s. Army Zero Collector Weston Electrical Instrument Corp Model 433

US $45

  • Rogers City, Michigan, United States
  • Oct 25th
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***************************************** U.S. Army Weston Electrical Instrument Corp Model #433 Zero Collector Volts A.C. 25-2400 Cycles Signal Corps, U.S. Army Voltmeter 1S-185 Item not cracked or broken Dated 31 January 1966 and 31 January 1967 on side Use/History For laboratory, production and general testing of AC currents. These are top-of-the-line, hand-calibrated, meters for regular use, and may function as secondary standards for routine applications. Note the mirrored scales and knife edged needles designed to eliminate parallax reading errors. For highest accuracy they would be used horizontally, and thus have feet on the back as well on the bottom of the case. Description The meter has a molded black bakelite case 3 1/4" x 5" x 5 1/4". There is a black leather carrying strap. The meter has a mirrored scale and knife-edge pointer. This model has a double range (0-150 & 0-300 mA) chosen by binding posts on the top of the meter. Model 433 meters have a rated accuracy of 0.75% of full scale when used in the horizontal position. *****************************************

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