How to modulate a carrier wave with audio (10 - Oscillators)

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  • Опубликовано: 25 авг 2024

Комментарии • 29

  • @Dagor
    @Dagor 5 месяцев назад +2

    Watched the whole series! Never understood how AM and FM works as good as I do now! Thank you prof.

  • @yasyasmarangoz3577
    @yasyasmarangoz3577 6 месяцев назад +3

    Would love to see part 11

  • @joeybonin7691
    @joeybonin7691 2 месяца назад

    I just built an old school transmitter using a screen-modulated 6888 vacuum tube (and a few others).

  • @yasyasmarangoz3577
    @yasyasmarangoz3577 10 месяцев назад +3

    Absolutely brilliant.
    Every second I learn as much as I would in hours.

  • @LousyPainter
    @LousyPainter Год назад +3

    Awsome. Great channel!

    • @adanner
      @adanner  Год назад +2

      Welcome aboard!

  • @grzesiek1x
    @grzesiek1x Год назад +3

    it works :) I have quite stable 1.14064 MHz here

  • @davidalcideschanrosales7401
    @davidalcideschanrosales7401 10 месяцев назад +1

    Great series of videos, I'm reviewing this interesting topic from college just for hobby (I'm an electrical and electronics engineer), I like how you approach theory and practice. Continue doing this!

  • @sachinsingh576
    @sachinsingh576 2 месяца назад

    Thank you very much ❤

  • @Saidkus
    @Saidkus 6 месяцев назад

    Thanks for that great video. We are looking forward to the next videos.

  • @mohamedhamed8169
    @mohamedhamed8169 8 месяцев назад +1

    thank you prof we wait am modulator video please don't late.

  • @kel-A-3414
    @kel-A-3414 8 месяцев назад

    Great videos. Really helpful stuff. Would love to see a receiver for this tho!🙏🏾

  • @kamleshchavan7451
    @kamleshchavan7451 Год назад

    Great simply great , awesome , explanation is simple , easy to understand . Sir a request , if possible please make a video on the RC circuitry used for RC controlled car. How the signal is transmitted from transmitter to receiver module's to control the dc or servo motor of the RC toy car , please consider it as a project
    Teach us from the scratch , step by step Circuit designing etc
    Any magazine or book name having this kind of RC toys projects , with detail explanation of the schematic

  • @stronggers
    @stronggers 9 месяцев назад

    I love it

  • @bob_mosavo
    @bob_mosavo Год назад

    Thanks 😁

  • @eternex4983
    @eternex4983 6 месяцев назад

    @adanner Which opamp models did you use?

  • @gilbertojunqueira314
    @gilbertojunqueira314 11 месяцев назад

    Thanks

  • @eranhaicohen4932
    @eranhaicohen4932 6 месяцев назад

    Where can i find video 11?

  • @francescobrescia8314
    @francescobrescia8314 11 месяцев назад

    That was a great explaination and topic! I succeded in building the Colpitts oscillator and modulating it with an audio source coming from my pc. I have very small range of about 3 feet. I would like to understand how to increase the transmitting distance, i tried by putting an antenna and by increasing the collector current of the bjt but the results where not enough. Moreover i noticed that by using smaller inductors to produce higher frequencies, the output of the colpitts reduces and i get lower and lower peak to peak voltages of the sine wave. Can anyone explain me why is that happening and how to increase effectively the transmitting distance? Thanks🙏

    • @TurkAltai
      @TurkAltai 5 месяцев назад

      With rf power amp to output

    • @stefanopassiglia
      @stefanopassiglia 4 месяца назад

      an impedence matched antenna, an rf amplifier, etc etc

  • @SpacePortArcade
    @SpacePortArcade 3 месяца назад

    Could this work at 1GHz?

    • @adanner
      @adanner  3 месяца назад +2

      It's harder. The design still works but you have to be careful to keep the wires really short (their inductance matters then due to the short wavelength of the signal) and choose components that don't have excessive parasitic capacitance.

  • @activelow9297
    @activelow9297 Год назад

    My Colpitts oscillator produces a waveform that looks like a cursive lowercase r. Help!

    • @BrunoSantos-lm1pz
      @BrunoSantos-lm1pz Год назад

      Your transistor is probably cutting of, also thats not good for efficiency (also at a higher power you would get in trouble) because of the other frequencies that you are generating. Try switching around some resistors (or use potentiometers) to get it to a pure sine. Also doing that will reduce the amplitude, wich youll have to compensate for in another way.

    • @BrunoSantos-lm1pz
      @BrunoSantos-lm1pz Год назад

      Also if you can, try looking at it with a spectrum analyzer but be careful that you dont destroy the input of it.

  • @DeeegerD
    @DeeegerD 6 месяцев назад

    What is the point of showing the schematic for one second?!

    • @stefanopassiglia
      @stefanopassiglia 4 месяца назад +1

      Well if you paused the video you'd see that is nothing different from the schematic you have seen already