DocumentCode
1184337
Title
An Audio-Frequency-Response Curve Tracer
Author
Sherman, Jesse B.
Author_Institution
RCA Manufacturing Company, Inc., RCA Radiotron Division, Harrison, New Jersey
Volume
26
Issue
6
fYear
1938
fDate
6/1/1938 12:00:00 AM
Firstpage
700
Lastpage
712
Abstract
A device is described for automatically showing frequency-response characteristics of audio-frequency apparatus on the screen of a long-persistence cathode-ray tube, without mechanical equipment. This device can be used to trace a curve of output voltage on either linear or logarithmic scale versus frequencies from 20 to 15,000 cycles. The frequency scale can be either logarithmic or take special forms in which desired portions are expanded. Typical results of tests on amplifiers and electroacoustic equipment are presented.
Keywords
Audio recording; Cathode ray tubes; Detectors; Frequency synchronization; Manufacturing automation; Nonlinear filters; Signal generators; Testing; Voltage; Voltage-controlled oscillators;
fLanguage
English
Journal_Title
Radio Engineers, Proceedings of the Institute of
Publisher
ieee
ISSN
0731-5996
Type
jour
DOI
10.1109/JRPROC.1938.228327
Filename
1686670
Link To Document