LPF-9B Nine bands Low Pass Filter  (80-60-40-30-20-17-15-12-10 meters).

The LPF-9B kit is a module contains 5 low-pass filters switchable by relays (two bands each filter). This is the necessary complement to the 3 to 30MHz broadband amplifier kit "QPA-1" or to any other HF broadband amplifier up to 50W that does not incorporate low pass filters. 

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LPF-4B Two bands pairs Low Pass Filter.

Like the LPF-9 but 2 bands pairs among them: (80), (60 + 40), (30 + 20), (17 +15), (12 + 10)  

Please choose 2 bands pairs you want (specify in the comments of the order form).

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