NDLI: Some Aspects of Radio Telephony in Japan

Please wait, while we are loading the content...

Some Aspects of Radio Telephony in Japan

Content Provider	IEEE Xplore Digital Library
Author	Yokoyama, E.
Copyright Year	1913
Abstract	After outlining the experiments in radio telephony carried out in Japan since 1906, the "T. Y. K." system is cited. A newer system using, in the most favorable case, copper and aluminum electrodes about 0.2 inch (0.5 mm.) apart in rarefied air or other gas at a pressure of about 40 to 70 mm. as the discharger is then described in great detail. The influence of electrode design, gas pressure, electrode material, and other factors is considered. Means of securing steady and continued operation are given. Mr. T. Kujirai's earlier system of radio telephony is then described. This involves a direct current, moderate voltage discharger having a rotating brass disc and a fixed aluminum point as electrodes. A ferromagnetic frequency tripler due to Mr. T. Kujirai is discussed and operating data for its use in conjunction with an Alexanderson radio frequency alternator are given.
Starting Page	117
Ending Page	140
Page Count	24
File Size	4634603
File Format	PDF
ISSN	07315996
Volume Number	6
Issue Number	3
Language	English
Publisher Date	1918-06-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telephony Laboratories Educational institutions Telegraphy Frequency Yagi-Uda antennas Sparks Employment Marine vehicles
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in