Polarential telegraph system
id:
polarential-telegraph-system-320-13729049
title:
Polarential telegraph system
text:
A polarential telegraph system is a direct-current telegraph system employing polar transmission in one direction and a form of differential duplex transmission in the other. Two types of polarential systems, known as types A and B, are in use. In half-duplex operation of a type A polarential system, the direct-current balance is independent of line resistance. In half-duplex operation of a type B polarential system, the direct current is substantially independent of the line leakage. Type A is
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Polarential_telegraph_system
date created:
date modified:
2017-06-14T03:09:33Z
main entity:
{"identifier":"Q7209115","url":"https://www.wikidata.org/entity/Q7209115"}
image:
fields total:
13
integrity:
13