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Thread: Amplificator 1296 MHz cu MRFE6S9160

  1. #1
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    Amplificator 1296 MHz cu MRFE6S9160


  2. #2
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    Azi au sosit in YO 30 cablaje dupa proiect . In urmatoarele zile vor ajunge la cei care au comandat .
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    73, Claudiu
    YO4FYQ / KN44FD
    Valu lui Traian - CT

  3. #3
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    Immmm, ce frumoase sint. Bravo!

  4. #4
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    Intre timp am pregatit impreuna cu YO3MIH shuntul , gaurit inclusiv filete in cupru care nu se dau foarte usor mai ales pe grosimea de 10mm . Radiatorul este unul din recuperari cu dimensiunea de 184x 149x38mm , cu ventilatie pe el cred ca va duce inclusiv in digitale...
    Urmeaza sa primesc si restul de componente sa incepem plantarea ......
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    73, Claudiu
    YO4FYQ / KN44FD
    Valu lui Traian - CT

  5. #5
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    Update :
    Tranzistorul masurat .
    https://drive.google.com/file/d/1I13...ew?usp=sharing
    https://drive.google.com/file/d/1HwJ...ew?usp=sharing

    Pregatitit plita pentru shunt
    https://drive.google.com/file/d/1H_i...ew?usp=sharing

    Shuntul cu flux si fludor Fluti 1532 0.75mm Sn60 Pb38 Cu2
    https://drive.google.com/file/d/1HZz...ew?usp=sharing

    M-am folositde un subler pentru a masura si fixa distanta la tranzistor dupa ce fludorul a ajuns la temeratura de topire sa pot centra tranzistorul la valoare necesara . Ne folosim de soonda de la adancime de la subler blocandul la valoare necesara .
    https://drive.google.com/file/d/1Hn0...ew?usp=sharing

    Plita cu termostatul reglat in prealabil cu shutul pus la incalzit.
    https://drive.google.com/file/d/1H7J...ew?usp=sharing
    https://drive.google.com/file/d/1H6E...ew?usp=sharing
    https://drive.google.com/file/d/1GoT...ew?usp=sharing

    Pe shunt m-am folosit de 2 suruburi introduse in filete pentru a putea ridica shuntul de pe plita cand tranzistorul a fost lipit.
    https://drive.google.com/file/d/1Gk4...ew?usp=sharing

    Inca o masuratoare la tranzistor dupa lipire pe shunt
    https://drive.google.com/file/d/1Geq...ew?usp=sharing
    https://drive.google.com/file/d/1Gia...ew?usp=sharing

    Am grupat cele 3 condensatoare si le-am lipit intre ele inainte de a le lipi pe PCB. Condensatoare sunt recuperate.
    https://drive.google.com/file/d/1GTe...ew?usp=sharing

    Placa de la iesire
    https://drive.google.com/file/d/1GRG...ew?usp=sharing
    https://drive.google.com/file/d/1Fh_...ew?usp=sharing

    Placa intrare
    https://drive.google.com/file/d/1G0W...ew?usp=sharing

    PCB+SHUNT
    https://drive.google.com/file/d/1Fok...ew?usp=sharing

    Iesire coaxial , am preferat sa nu pun conector urmand sa lipesc coaxialul RG-402 pe o tabla de alama de 1mm prentru ai conferii rigiditate .
    https://drive.google.com/file/d/1F_4...ew?usp=sharing

    Verificare acord circuit intrare cu analizorul , din trimerul de 3pf care trebuie sa fie de calitate se aduce la rezonanta
    https://drive.google.com/file/d/1FNQ...ew?usp=sharing
    https://drive.google.com/file/d/1EwO...ew?usp=sharing

    Alimentare final
    https://drive.google.com/file/d/1ETf...ew?usp=sharing

    Power out Masurat cu Bird 43 element 250J .95-1.26 GHz 250w
    https://drive.google.com/file/d/1DQI...ew?usp=sharing

    Curentul absorbit
    https://drive.google.com/file/d/1DRx...ew?usp=sharing

    SWR
    https://drive.google.com/file/d/1E-E...ew?usp=sharing

    Video din timpul testelor
    https://drive.google.com/file/d/1DO6...ew?usp=sharing

    In concluzie , am respectat valorile din schema precum si pozitia lor pe PCB . Singurul reglaj a fost din trimerul de 3pf pe maxim .
    73, Claudiu
    YO4FYQ / KN44FD
    Valu lui Traian - CT

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