LINK ORIGINAL DE ACCESO LIBRE EN LA WEB:
https://archive.org/details/AnaliseDeCircuitosRobertL.Boylestad12EdEmPortugues

LINK DIRETO EN FORMATO PDF:
https://archive.org/download/AnaliseDeCircuitosRobertL.Boylestad12EdEmPortugues/Analise%20de%20Circuitos%20Robert%20L.%20Boylestad%2012%C2%AA%20Ed%20em%20Portugues.pdf


About the Internet Archive 
The Internet Archive, a 501(c)(3) non-profit, is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, the print disabled, and the general public. Our mission is to provide Universal Access to All Knowledge. We began in 1996 by archiving the Internet itself, a medium that was just beginning to grow in use. Like newspapers, the content published on the web was ephemeral - but unlike newspapers, no one was saving it. Today we have 20+ years of web history accessible through the Wayback Machine and we work with 450+ library and other partners through our Archive-It program to identify important web pages.

The Internet Archive serves millions of people each day and is one of the top 300 web sites in the world. A single copy of the Internet Archive library collection occupies 30+ Petabytes of server space (and we store at least 2 copies of everything). We are funded through donations, grants, and by providing web archiving and book digitization services for our partners. As with most libraries we value the privacy of our patrons, so we avoid keeping the IP (Internet Protocol) addresses of our readers and offer our site in https (secure) protocol.
LINK: https://archive.org/about/