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An inexpensive portable ECG transmitter

Authors
Journal
American Heart Journal
0002-8703
Publisher
Elsevier
Publication Date
Volume
90
Issue
5
Identifiers
DOI: 10.1016/0002-8703(75)90225-2

Abstract

Abstract A small, easy-to-construct, pocket-sized ECG telephone transmitter utilizing few components and costing less than $20.00 is described. The tone produced varies with the ECG signal and may be transmitted over the telephone system to a demodulator and ECG recorder for permanent records and interpretation, as well as serving as an indicator of the ECG signal at the bedside. This simple device provides useful information on patients with various clinical problems.

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