#1482 1/4 Wave Notch Filter Made of Wire
30:15
Create a Band Reject Filter using just Coax: Shorted Stub Version (049b)
14:22
What the HECK is a NOTCH Filter?!
28:53
#617 How to Design a Crystal Filter
8:25
#902 What is a 1/4 Wave Stub and Why Does it Work
33:57
Tuning Motorola uhf duplexer and 1/4 wave stub using the rigol dsa815 spectrum analyzer
12:07
#1366 RF Bridge
15:46
Introduction to LC Filters
8:36