Simple 80M NE602 RX - Purpose of 01.uF Bypass Capacitors

Поделиться
HTML-код
  • Опубликовано: 7 фев 2025
  • In order to understand what I'm talking about in this video, see the blogpost at:
    aa7ee.wordpress...

Комментарии • 26

  • @dxexplorer
    @dxexplorer 4 года назад +3

    I have to say thank you for this. I borrowed the idea from you and used it in my regen receiver that has a different schematic, but the AF amp is pretty much the same. OMG that 100nF from pin 2 to gnd in my case makes miracles with the audio hahaha. Thank you so much. I tried using another one on the first stage before the AF amp, but it's cutting too much of the audio level that goes into the AF amp, so I'm using 4.7nF instead. Even though with 100nF sounds simply magical and clean ))... 73. I really want to try this one as well later one.

  • @MickLBrad
    @MickLBrad 12 лет назад +1

    Nice demonstration and neat project too! I only recently came across your blog and have enjoyed your projects and your in-depth descriptions of them.

  • @mikej-38qso22
    @mikej-38qso22 7 дней назад

    Thank you, your enthusiasm is great and over the years I refer back to this video regarding the Ne602 but I have a question: how did you connect the 100k volume pot to pins R12 and R11 on the Hi-Per-Mite ? Thank you 73 K7AJQ

  • @RadioMaker360
    @RadioMaker360 Год назад +2

    I make this radio with some mods but it great projet

  • @researchandbuild1751
    @researchandbuild1751 5 лет назад +1

    I guess it makes sense because pin 4 and 5 will have RF still too, and the lm386 probably rectifies that and amplifies it too or such, so it has to be bypassed to ground.

  • @gangadharana2467
    @gangadharana2467 Год назад

    Sir please explain the modifications to be done to convert The RX for40M and 20M

  • @lovelycollection100
    @lovelycollection100 Год назад +1

    I make a Lot of this radio in the pcbway have once pcb

  • @mauriciobastospy2tad
    @mauriciobastospy2tad 4 года назад

    Very cool video, congratulations! I also really like Receivers like this one, I even have a few on my Channel, where I share the PCB's layout and layout. Success friend!

  • @AlexanderBessalov
    @AlexanderBessalov 7 лет назад

    how do you make mounting pads and how to glue them on foil-coated fiberglass.

    • @AA7EE
      @AA7EE  Год назад

      They are MePADS and MeSQUARES from QRPMe. I glue them on with superglue in the gel form (the liquid form is too runny).

  • @Tony770jr
    @Tony770jr 8 лет назад

    Hi, how are you able to determine the number of turns on the antenna side of the T50-2?It appears from the number of turns on the secondary and the 560pf it should resonate in the 80M band and that can be calculated from an online calculator.

  • @NsndoBrasil
    @NsndoBrasil 6 лет назад

    Friend which is the equivalent substitute of this FET BF998, PLEASE QSL do Brasil

  • @SimonsSolarShed
    @SimonsSolarShed 7 лет назад

    can I substitute mv1662 varicap diode with a different one? it seems these diodes are next impossible to get hold of.

    • @AA7EE
      @AA7EE  7 лет назад

      Yes you can. I built a similar receiver using a 1N4001 diode as a varicap. Try what you have.

  • @Wol1ant
    @Wol1ant 7 лет назад

    contact areas are pasted onto the foil for soldering contacts. Where do you buy them?

    • @AA7EE
      @AA7EE  Год назад

      They are MePADS and MeSQUARES from QRPMe. I glue them on with superglue in the gel form (the liquid form is too runny).

  • @researchandbuild1751
    @researchandbuild1751 5 лет назад

    Cool, a direct conversion reciever

  • @raafatalheety826
    @raafatalheety826 8 лет назад

    Thanks for you 73 from baghdad yi1hxh. good jop.

  • @AlexanderBessalov
    @AlexanderBessalov 7 лет назад

    Can I ask for your receiver's scheme?
    UT5ULJ op. Alex 73 !

    • @AA7EE
      @AA7EE  7 лет назад

      The schematic is shown in the video.

    • @AlexanderBessalov
      @AlexanderBessalov 7 лет назад

      why is there a zener diode on 3.3 Volts in the power circuit LM368

    • @Wol1ant
      @Wol1ant 7 лет назад

      contact areas are pasted onto the foil for soldering contacts. Where do you buy them?

  • @СтаМилАлас
    @СтаМилАлас 5 лет назад

    Bravo 73 milan

  • @alejandrotavolini1044
    @alejandrotavolini1044 8 месяцев назад

    Excelente !! LW8DNV

  • @stationvictormike3415
    @stationvictormike3415 7 лет назад

    I have all the components to build this one on me pads

  • @Gennadiy_Kozlov
    @Gennadiy_Kozlov 2 года назад

    Пора уже вешать июдейскую оккупационную сионосадисткую АДминистрацию. Аминь