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Condition: used Country of Origin: United States Manufacturer: Authur H. Thomas
Vintage Electronic Meter for measuring Linear Conductance and Resistance.
Produced by the Arthur H. Thomas Co. of Philadelphia, PA. U.S.A.. 19105.
Model No 275.
Age uncertain, but with zip code it had to be made mid 1970s or later.
Nice and clean.
Back has 1.5 amp fuse, input, output& output adjusting screw.