12 - Building an LC Filter

13 - Testing an LC Filter

52 - Building an RF Power Amplifier

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68 — Улучшенный фильтр нижних частот (для диапазона 2 м)

11 - Designing an LC Filter

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#736 40m Low Pass Filter (part 1 of 4)

Part 2: Low Pass Filter

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37 - Building & Testing a Band Pass Filter

61 - Building Transformers: for wideband RF impedance matching

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18 - Another RF Amplifier

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#766 Measuring Ferrite RFI Suppression

Rapid Prototyping RF Filters with Tape & QUCS