DocumentCode :
908574
Title :
Level Adjustment of Audio Signals by Means of a Solid-State Electronic Attenuator
Author :
Beck, R.
Author_Institution :
McCurdy Radio Industries, Ltd.
Issue :
1
fYear :
1966
fDate :
6/1/1966 12:00:00 AM
Firstpage :
30
Lastpage :
37
Abstract :
A solid-state centralized system of level adjustments of audio signals is described. The problem considered was how to adjust and vary the level of audio signals with the same precision achieved with present mechanical step-attenuators. The method finally decided upon was that of using the variable-impedance characteristic of a forward-biased diode. The diode impedance decreases proportionately to the forward direct current flowing through it.
Keywords :
Attenuation; Attenuators; Diodes; FETs; Impedance; Pulse modulation; Radio broadcasting; Radio frequency; Relays; Solid state circuits;
fLanguage :
English
Journal_Title :
Broadcasting, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9316
Type :
jour
DOI :
10.1109/TBC.1966.265863
Filename :
4043562
Link To Document :
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