RF Filter..

Filter tau kan???
sama aja buat saringan santen ibu2x..he2x...

dibawah ini ada e-book ya..:
-. Sallen-Key Low Pass Filter Design Routine
-. Band-Pass Filters for HF Transceivers
-. A Diode-Switched Band-Pass Filter
-. Second-Harmonic-Optimized Low-Pass Filters
-. Narrow Band-Pass Filters for HF
-. Clean Up Your Signals with Band-Pass Filters (part 1)
-. Clean Up Your Signals with Band-Pass Filters (part 2)
-. Introduction to RF Filter Design
-. RF Filter Design
-. Introduction, definition of RF Filter terms, Q&As