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Vintage Cambridge Instrument Constantan Rheostat. A unique scientific device with rotary dials, ideal for collectors or industrial decor. Made in England.
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Vintage Cambridge Instrument Co. Constantan Rheostat, a scientific instrument used for precise electrical resistance adjustments. The device features a black metal casing with multiple rotary dials and measurement scales. The casing has labels indicating 'Z4 WY 2800,' 'Ohms at 20°C,' and 'Constantan' along with max amperage settings for each dial. A label warns against disturbing a seal to preserve calibration. The rheostat shows some signs of wear consistent with age, including minor scratches and scuffs on the casing. A unique piece perfect for collectors of scientific instruments or as a decorative item with an industrial aesthetic. Made in England.
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