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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
513
anode or drain voltage, and this loss may sometimes need to be taken
into account.
If only a simple resistor is used, it carries not only the steady (or
z.f.) component of current but also the signal current, which
produces a voltage in opposition to the input. We have, in fact,
negative feedback (Sec. 19.15). If that is wanted, well and good; but
if not, then something has to be done to provide a path of relatively
negligible impedance for the signal currents, without disturbing the
z.f. resistance. A by-pass capacitor, C
s
in Fig. 13.8, serves the
purpose; for r.f. a value of 0.1 μΡ or even less is enough, but for the
lowest audio frequencie ...
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Publisher Resources

ISBN: 9781483105574