Torrent sites or "free PPT download" scams. These often carry malware or outdated 7th/8th edition files mislabeled as the 9th.
Most students skip the PPT animations. In Floyd’s 9th edition slides, the BJT biasing circuits appear one click at a time. Use the "Slide Show" mode to watch how voltage dividers produce Q-points visually. Pause the slide and try to calculate ( I_C ) before the answer appears. electronic devices floyd 9th edition ppt
Ultimate Guide to Electronic Devices by Thomas L. Floyd (9th Edition) PPT Torrent sites or "free PPT download" scams