Related Object Info
resistance standard (2 Ohms)
Coil of manganin wound on a tube supported in a perforated nickel-plated case. Two heavy terminals are protruding from the hard rubber top for suspension in mercury to a standard bridge set in an oil bath. There is a thermometer inside the container as well.
The resistance is 2 Ohms and is calibrated for 20°C.
There is a gray (faded blue) triangle painted on side, which means it was used as a demonstration instrument in the physics department at Harvard.