Post office box (electricity)
id:
post-office-box-electricity-247-8005189
title:
Post office box (electricity)
text:
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.
brand slug:
wiki
category slug:
encyclopedia
description:
Testing device
original url:
https://en.wikipedia.org/wiki/Post_office_box_(electricity)
date created:
date modified:
2023-08-16T21:23:16Z
main entity:
{"identifier":"Q7233679","url":"https://www.wikidata.org/entity/Q7233679"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/0/04/Post_office_box_%28electricity%29Tokyo_Denki_University.jpg","width":5184,"height":3456}
fields total:
13
integrity:
15