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Riparazione oscilloscopio Unaohm G508A DT ( prima parte)
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Il Commutatore a chiave Fiat Topolino C
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Elektromekano M83. zaglądamy do środka słuchamy jak szumi. SP7MW, DL1DCT, DK9AT słaba propagacja...
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I Saved an Electron Microscope from the Trash
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