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Autek Research QF-1A - SSB/CW/AM Filter
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Thu · Jul 16, 2026
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Used
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ZIP 920**
charlesj64
143 ratings · 0.00% positive
Description
From the sellerUsed Autek SSB/CW/AM audio notch, low pass, and high pass filter. This is an active audio filter, highly regarded in the amateur radio community for cleaning up CW, SSB, and AM signals on older receivers and transceivers.
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