Yiqiin dunida xiiso of raadiyaha, waxaad bilaabi kartaa la been abuurtay circuit fudud, kaas oo ku siin doonaa waayo-aragnimo gacan-ku wanaagsan in laga bilaabo enthusiast ah wireless. Bilow, waxaad ka qaadan kartaa set crystal ah, wax soo saarka waxa uu noqday caado wanaagsan ee radio hiwaayadda. Isagu waa u fudud in la sameeyo, oo aad u suurto gal ah in dhawr saacadood. Tani waxay u baahan ugu yaraan iyo la awoodi karo in set kasta oo qaybo ka mid ah iyo, dabcan, waxay doonayaan waa in ay ka shaqeeyaan. The aqbalana qalabka noocooda hore waa ka duwan yahay in ay macquul tahay in isbedel aan u baahan tahay in la qorsheeyo oo sameeyo, waxaa ka dhigi guddiga circuit ku daabacan, waa ay fududahay in la dhiso, sababta oo ah qaybaha oo dhan ku haboon on miiska.
Diyaari lagama maarmaan u ah soo saaridda ee qaybo ka mid ah qalab ka. baare waxay ka kooban tahay diode dhibic aqbalana Semiconductor ah (D9, D2), taas oo ah baare. Calan of capacitors in dhawr kun oo picofarads, ul ferrite (dhexroor 7-8 mm) 400HH brand, 600HH oo dherer ah 140 mm. Sidoo kale waxaa lagama maarmaan ah si ay u diyaariyaan sumadda silig a NDV 1.2 (0,15-18 mm) iyo wax kasta oo Phones-resistivity sare gariiradda iska caabin ah aan ka yarayn 1500 ohms. All radio waxaa laga iibsan karaa dukaamada qaaska ah.
Hadda waxaan xoogga saaraan soo saaridda of gariiradda for ul ferrite. Waayo, kan ku dhaawacay dhowr lakab oo waraaqaha dabacsan on xudunta ferrite oo iyaga u ogolow. Waa in ay qaataan jir qaro weyn, taas oo si fudud loo saari karo qodaa. Hadda waxaan dabaylaha jirsado saddex boqol oo silig pre-diyaarisay iyo samayn qasabadaha our shan markooda kasta. baadi The asaasiga ah ee kuwa ugu horeysay ka dhigaysa inuu set crystal waa in konton markooda kasta oo qaniinyada silig, hagaajiyeen iyo obluzhivaetsya. Leave hawlgalka this dambe, ee geedi socodka of fuuli jiray qallooca kaliya ku filan si ay u sameeyaan oo ay sii wadaan in ay dabaylaha silig. gariiradda keentay lagama maarmaan ah in ogolow xabagta waraaqaha iyo ha qalalan.
Hadda waxaan soo ururin alaabta oo dhan sida nidaamka fudud. feedhuhu Full ah gariiradda iyo anode ee diode ku xiran aqbaliddoodii antenna ah. feedhuhu kale oo xad-dhaaf ah ku soo lifaaq si dhulka iyo mid ka mid ah soo saarka headphone ah. terminal labaad ee headphone ku xiran cathode ee diode ah. All aad soo ururiyay raadiyaha marka hore la gacmihiisa. Haddii oo dhan wareeggeedii aqbalana si sax ah soo ururay, waxay ku bilaabataa si degdeg ah ka shaqeeya. qalab goob waxaa dhibta ka beddelo tirada markooda on gariiradda dooro capacitor ah taas oo ku xiran isku midka ah si ay u headphones ah. Iyada oo ay taasi gaari dhawaaqa ugu fiican.
aqbalana a noocan oo kale ah waa qabsado si fiican u wareegsan Idaacadaha ka hawlgala on MW, LW. Tallaabada xigta waxaa laga yaabaa in wax soo saarka ee hal, double, iyo Cascade ah qaateyaasha in qaadan kartaa tiro ballaaran oo uu saldhigyada. Iyo muddo dheer ka soo saari karaan aqbalana iskaanka in si toos ah ka heli station oo qabaneysa ah. The more adag nidaamka ka mid ah qalabka, fursadaha more dhigay. Laakiin Mudanayaasha saxda ah ee qadanayo lagama maarmaan ah in ay leeyihiin ee shaybaadhka gurigaaga a qalab wanaagsan imtixaanka, matoor hirka sare, oscilloscope ah, iwm