40 Meter Low Pass Filter - DIY Cheap!
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- Опубліковано 2 жов 2024
- You can build this 40 Meter LPF kit from QRP Labs and upgrade it from 10 to 40 watts! How does $5 US sound?
For 40 watts be sure to change capacitor voltage ratings to 200 V
QRP Labs Low Pass Filter: shop.qrp-labs....