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#211 SMPS Power Supply Tech Training - Tips, Tricks, Hints, Analyses on Switching Mode Power Supply

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#100 Balun PART 1: Broadcast Interference, Common Mode Current and Balun's magic

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#112 repair ICOM IC-7100 killed by overvoltage

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Fix A Power Supply! Diagnosis Repair And Restoration.

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#207 build your own ham radio antenna for field day or traveling

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¡Tu batería durará para siempre! Restaura rápidamente tu batería con Coca Cola

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#159 How to connect a TRX Radio to a Spectrumanalyser or counter or divation meter