Homemade SW preselector amplifier
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Strange Behavior on 17m (using a variable preselector to combat QRM)
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Collins R390A/URR overhaul / Gear assembly after cleaning
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Shortwave 101 beginners series How to Identify what you are listening to tips and tricks
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La magia de onda corta
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Heathkit SB-200 Linear Amplifier
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Fighting noise with SONY TFM-2000F
12:46