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Browse Journals & Magazines > American Institute of Electri ...> Volume:82 Issue:2 Help

An electronic tone ringer for telephones

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1 Author(s)
Suda, D. J. ; Automatic Electric Laboratories, Inc., Northlake, Ill.

A SIGNALING DEVICE, comprising essentially an input rectifier, an oscillator, and a sound transducer (the handset receiver), has been developed for use in telephone instruments which are too small to accommodate the electromagnetic type of ringer. It responds to present standard ringing voltages and frequencies, and does not respond to dial pulses. Electronic signals of this type are also suitable for use in electronic switching systems, which cannot handle the power required by electromagnetic ringers.

Published in:
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the  (Volume:82 ,  Issue: 2 )

Date of Publication: May 1963

Page(s):
199 - 201
ISSN :
0097-2452
Digital Object Identifier :
10.1109/TCE.1963.6373376
Date of Current Version :
10 December 2012
Issue Date :
May 1963

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