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Weston Electrical Co A.C. AMPERES A.C. Gauge Model 433 STEAMPUNK Bakelite 1940's, US $1700 – Picture 0
Weston Electrical Co A.C. AMPERES A.C. Gauge Model 433 STEAMPUNK Bakelite 1940's, US $1700 – Picture 0

Weston Electrical Co A.c. Amperes A.c. Gauge Model 433 Steampunk Bakelite 1940's

US $1700

  • Elmhurst, Pennsylvania, United States
  • May 30th
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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. Decal (now removed): STATE OF CALIFORNIA / HUMBOLDT COLLEGE / ??162. Research These meters are described in The 1960 (J-300) Cenco Catalog, pg 750, as Weston Model 433 meters. They also appear on pg 536 of the 1976 Central Scientific Catalog. Provenence HSU Physics Department, discarded Fall 1990.

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