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Results 1 to 5 of 5
  1. #1
    dibaci Expert
    Join Date
    Oct 2002
    Location
    44.26’24 /26.10'50
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    10,801
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    Default Filtru de rejectie tip NOTCH

    L-am desenat ca dracu in paint.E destul de inteligibil

    Ce mai tin minte e ca L2 are 1,5 spire pe dorn de 3 mm
    [SIGPIC][/SIGPIC]

  2. #2
    Nebunul de la butoane Expert
    Join Date
    Nov 2004
    Location
    Diemrich
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    2,319
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    Default

    las ca-i frumos. pentru cine nu stie, filtrul tip Notch e folosit la rejectia de purtatori multiple care apar in banda de trecere audio (in radioamatorism), la rejectia semnalelor perturbatoare provenite de la frecventa retelei, etc.

  3. #3
    dibaci Expert
    Join Date
    Oct 2002
    Location
    44.26’24 /26.10'50
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    10,801
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    Default

    Asa au fost primele filtre pentru HBO,cele originale ma refer,cand era perturbatorul cam la vreo 3,25 MHz departare de purtatoarea video(in interiorul canalului).
    [SIGPIC][/SIGPIC]

  4. #4
    Senior Major Expert
    Join Date
    Jan 1970
    Location
    Bucuresti, 44 26`54.47N 26 07`22.25E
    Posts
    3,806
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    Default Mda

    C1; C4; C5; le am pe acasa. Ramane sa caut C2; C3 pe la magazine. Problema e cu L1,L2,L3,L4 ca nu vad bine cate spire au, ce sarma si ce miez. Daca rejecteaza cu bine ceea ce trebuie, merita efortul.
    --BUIE MLANA-- MAI BINE O ZI SOIM DECAT O SAPTAMANA CIOARA

  5. #5
    dibaci Expert
    Join Date
    Oct 2002
    Location
    44.26’24 /26.10'50
    Posts
    10,801
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    Default

    sunt bobine fara miez pe dorn de 3 mm cu sarma CuEm de 0,5.Vreo 5 spire parca
    [SIGPIC][/SIGPIC]

 

 

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