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Foundations of Wireless and Electronics, 10th Edition
book

Foundations of Wireless and Electronics, 10th Edition

by M. G. Scroggie, S. W. Amos
October 2013
Intermediate to advanced content levelIntermediate to advanced
570 pages
27h 46m
English
Newnes
Content preview from Foundations of Wireless and Electronics, 10th Edition
409
This feature is called—not very aptly, for time is not
involved—delayed a.g.c.
Note that the a.g.c. potential divider system in Fig. 22.19 applies a
small forward bias to the detector diode, sufficient to bring the
working point to the sharpest point on its characteristic curve (see
Fig. 9.14) and thereby increase its response to weak signals.
Oddly enough, a.g.c. is possible with transistors by applying
control bias of the opposite polarity to that just indicated. For this
forward a.g.c. (as it is called) to work, there must be a suitable
amount of resistance in the collector circuit. So when a.g.c. bias is
applied and increases the collecto ...
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Publisher Resources

ISBN: 9781483105574