Our website is made possible by displaying online advertisements to our visitors.
Please consider supporting us by disabling your ad blocker.
Post office box (electricity)
&sq=&lang=en&file=File:Post_office_box_(electricity)Tokyo_Denki_University.jpg)
The post office box was a Wheatstone bridge–style testing device with pegs and spring arms to close electrical circuits and measure properties of the circuit under test.[1][2]
- ^ Marikani; Marikani A. Engineering Physics. PHI Learning Pvt. Ltd. pp. 253–. ISBN 978-81-203-3939-2.
- ^ "Leeds University Digital Objects". Leeds University Library. Archived from the original on 23 December 2012. Retrieved 30 January 2009.
Previous Page Next Page
