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> Leeds & northrup 0/0 resistance limit bridge
Leeds & northrup 0/0 resistance limit bridge
The Sperry Gyroscope Co Inc ID tag identifies this unit as a 0/0 Limit Bridge, type 4270, and a Test Fixture. The serial number is 532361. On one side of the top plate the numbers 4365 and D2-5 are etched into the metal.
This unit was produced by Leeds & Northrup In New York. I believe it was used to compare a standard to an unknown resistance and measure the difference as a percentage.
This unit is an older wooden cased instrument and would be a good collector's item or conversation piece.
The case appears to be mahogony. The unit weighs approximately 59 oz.
