One Transistor Magic - "Pititico" CW Transceiver ( Final Version )

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  • เผยแพร่เมื่อ 16 ม.ค. 2025

ความคิดเห็น • 38

  • @multilecful
    @multilecful วันที่ผ่านมา +1

    Good one Chip, and happy new year 🎉

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา

      Thank you Nigel and Happy New Year as well. Not sure if you received my New Year video message 😁. I hope its all good with you there. 73 my friend.

  • @ალექსანდრელაბაძე
    @ალექსანდრელაბაძე 21 ชั่วโมงที่ผ่านมา +1

    at the end it was half an hour video but, when something is interesting time flyes by😁. good luck chip and i forgot to wish you happy new year may this year be best year for you. 73 bud 4L1LAT❤

    • @dxexplorer
      @dxexplorer  21 ชั่วโมงที่ผ่านมา +1

      Thank you so much my friend. Hahaha it was indeed. Actually it was around 45 minutes but I had to cut parts to make it shorter 🤣. Have a fantastic year as well my friend. 73, YO6DXE.

  • @Chems7308
    @Chems7308 วันที่ผ่านมา +1

    Very super east handy circuit, specially a single transistor one ,i do like everything thats really based with transistors only for radio projects.thnx ❤

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา +1

      I do too. I think I am addicted to these simple circuits. They are not perfect and sometimes the adjustments are annoying to do in order to make them perform decent.. but the satisfaction you get is priceless 😁. 73 my friend.

  • @pd1jdw630
    @pd1jdw630 21 ชั่วโมงที่ผ่านมา +1

    Looks great! You’re a lot further with Morse code then I am. 😂

    • @dxexplorer
      @dxexplorer  21 ชั่วโมงที่ผ่านมา +1

      Ohhh and I thought I am bad. Hahaha thanks this made me feel better 🤣🤣🤣. I really have to learn the code pfff. Do you realize that CW is actually the reason I got into amateur radio in the first place and I still don't know the Morse code ? 🤣🤦🏻‍♂️.

  • @klausbrandt5064
    @klausbrandt5064 14 ชั่วโมงที่ผ่านมา +1

    Brilliant video, very interesting.

    • @dxexplorer
      @dxexplorer  13 ชั่วโมงที่ผ่านมา +1

      Thank you so much for watching 😁🙏🙏 73, YO6DXE

  • @doost6233
    @doost6233 10 ชั่วโมงที่ผ่านมา +1

    Very good.

    • @dxexplorer
      @dxexplorer  10 ชั่วโมงที่ผ่านมา

      I just love simple circuits like this one. Is not perfect of course... is too simple to make something fancy out of it, but is a joy both to build it and also use it. Of course now I only play in the dummy load using it as a Morse Code Practice Oscillator but I can't wait to use it on air as well 😁. 73, YO6DXE.

  • @matthiaswilhelm9813
    @matthiaswilhelm9813 7 ชั่วโมงที่ผ่านมา

    Very nice tx rx😂❤

    • @dxexplorer
      @dxexplorer  7 ชั่วโมงที่ผ่านมา

      I love it as well. The only thing is that I never got it to work with a telephone speaker as Miguel was recommending in his original article. The only way was to use an external amp at high gain. I still want to make it work with a telephone speaker instead 😄. 73, YO6DXE.

  • @The_electronics_nerd
    @The_electronics_nerd 13 ชั่วโมงที่ผ่านมา +1

    amazing project i will try it. also hi dx explorer

    • @dxexplorer
      @dxexplorer  13 ชั่วโมงที่ผ่านมา

      So far is my favorite transceiver, I don't know why 😁. 73 my friend.

  • @robertofernandez-x9p
    @robertofernandez-x9p 11 ชั่วโมงที่ผ่านมา

    Thanks!

    • @dxexplorer
      @dxexplorer  10 ชั่วโมงที่ผ่านมา

      Thank you so much Roberto. I was wondering what is with this 1.99$ ... I thought you calculated the cost of the components or something 🤣🤣🤣. 73 my friend, YO6DXE.

  • @Very_Dark_Engineer
    @Very_Dark_Engineer วันที่ผ่านมา +1

    23:07 almost like TribalNeed

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา

      Hehe. It reminds me of the sound of the tube transmitters 😁😁.

  • @micahwilson9624
    @micahwilson9624 วันที่ผ่านมา +1

    I have been trying to build the initial one and I cannot for the life of me get any rx. Connecting to an oscilloscope shows that tx is producing a waveform at the expected tx frequency but no rx, even after trying the fixes I found online. Going to try this one next

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา +1

      I think o once had to deal with this problem as well. But to be very honest I do not know what it was, but I do remember I messed up something in the schematic. Probably to make sure the antenna is ok and good for that particular band. Let me know... maybe we can figure it out. 73, YO6DXE.

  • @mkpeker
    @mkpeker 9 ชั่วโมงที่ผ่านมา

    Hahaha, you mistakenly coded : -.-. .-- ( CW) thats the purpose of this transceiver. 😊 Thank you. TA4SWL, 73.

    • @dxexplorer
      @dxexplorer  9 ชั่วโมงที่ผ่านมา +1

      Besides trying to code CQ CQ DE... everything else is not a mistake... is more like I have no clue what it is I just make noise 🤣🤣🤣. I want to learn the code so badly but I do not have the time right now 🤦🏻‍♂️. 73, YO6DXE.

  • @F4LPM
    @F4LPM วันที่ผ่านมา +2

    Nice tiny circuit. Good luck. This month I don't have time I'm on internship on machining job, I try to build delta loop antenna for 40m and 80 and 20 m
    I need to learn CW too
    73 F4LPM

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา +2

      We both need to learn CW 🤣🤣. Ohhh good luck with the internship and building the antenna. Send me photos 😁. We keep in touch. 73, YO6DXE

  • @metatechnologist
    @metatechnologist 19 ชั่วโมงที่ผ่านมา +2

    It is too "chirpy" i.e. the oscillator is being loaded too heavily. It will likely be mentioned in signal reports. Edit: It's a cute circuit but not that practical imo. To help with the chirp I'd put a 4.7K inline with the 10k or maybe make it a pot to adjust for optimum output.

    • @dxexplorer
      @dxexplorer  19 ชั่วโมงที่ผ่านมา +3

      A little yes but too much not really. I've heard many others these past days on air waaaaay worst. Is one transistor so is expected. But the power can be lowered and the chirp dissapears for those that want to have a clean signal as well. Either by placing a small resistor 10 to 100 Ohm between the emitter of the transistor and the inductor, or by changing the value of the output capacitor ( the one in the emitter ). 73, YO6DXE.

  • @Very_Dark_Engineer
    @Very_Dark_Engineer วันที่ผ่านมา +1

    Decent quality boards as always. By the way if someone looking for 2N2222 substitution i can advice 2sc1815 i have it in my 27MHz TX board from late 90"s RC car and personaly used it with success in 35MHz TX also. If someone knows other suitable types it will be good to know, for me at least, thanks.

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา

      Ohh that is good to know because I think I have a bunch of them recovered from older boards. Maybe in the next video I remember to tell a funny story about tranzistors now that we talk about them 🤣. 73, YO6DXE.

  • @ABHIJITHMOHANAN1997
    @ABHIJITHMOHANAN1997 วันที่ผ่านมา +1

    Hiii how are you

    • @dxexplorer
      @dxexplorer  22 ชั่วโมงที่ผ่านมา

      Good morning from Transylvania. Doing good so far... just a little busy with work. Hope you have an amazing rest of the week. 73, YO6DXE

  • @BigGordi-w6n
    @BigGordi-w6n 17 ชั่วโมงที่ผ่านมา +1

    sry dr om - chirp is bad

    • @dxexplorer
      @dxexplorer  17 ชั่วโมงที่ผ่านมา

      I just replied on an earlier comment regarding this: A little yes but too much not really. I've heard many others these past days on air waaaaay worst. Is one transistor so is expected. But the power can be lowered and the chirp dissapears for those that want to have a clean signal as well. Either by placing a small resistor 10 to 100 Ohm between the emitter of the transistor and the inductor, or by changing the value of the output capacitor ( the one in the emitter ). 73, YO6DXE.

    • @dxexplorer
      @dxexplorer  17 ชั่วโมงที่ผ่านมา

      This is what I call chirpy ... still ... is my favorite CW transmitter from TH-cam and I really want to build it 😁. th-cam.com/video/rrhGGMnywYo/w-d-xo.htmlsi=6BjTfNz3aIBpF8rj

  • @menajemh
    @menajemh 11 ชั่วโมงที่ผ่านมา

    translate pititico to spanish

    • @dxexplorer
      @dxexplorer  11 ชั่วโมงที่ผ่านมา

      Sounds good to me... but as BBQ 🤣 ... joking hahaha. A proper translation in Spanish would be El Pequeño.