ECH83/ECH81 AM Tube Receiver, Csöves vevő, prijemnik sa elektronskim cevom
ECH83/ECH81 Alacsony feszültségű AM csöves vevő - ECH83 al jobban működik de az nem volt. A potenciométerrel a visszacsatolást állítjuk AM prijemnik sa niskim naponom i elektronskim cevom - sa ECH83 bolje radi ali to nisam imao. Sa potenciometrom podešavamo povratnu spregu. Low voltage AM Tube Receiver - beter with ECH83 i not use. With variable resistor change regenerative control.
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