Vr = 10dB/20 Rs = 2.25×Z (1 − 1/Vr) Rp = 2.25×Z / (Vr − 1) L1 = 0.1125×Z mH
Rs 1.80×Z Rp 0.561×Z Rs 1.24×Z Rp 1.82×Z Rs 0.746×Z Rp 4.53×Z Rs 0.411×Z Rp 10.1×Z
Rp in 0 Rs in out Rs/Rp = (Vr − 1)²/Vr P = 60 × 10−dB/10
Ohms, comma separated; x20 = twenty of that value. 4k7 and 1.2k work.
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Tools for the build, and a few tips.