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  • Cap storage and discharge

    The electronics/electricity books I have never seem to address things at a low enough level for me.
    Sorry to ask this stuff but.....
    Take the single 6V6 in the Fender VC below.
    I assume the electrons collect on the grounded terminal of that first 20-450 cap. When needed, they move up through the cat resistor (just disregarding the by-pass cap for now) through the Cathode to the Plate, into the Out Tranny..... from the top of the OT, then out the bottom of the OT..... and then to the positive terminal of that same 20-450 cap.
    It seems like those electrons cannot just keep collecting there, over and over forever. As well as the power transformer/power supply charging the negative terminal of the cap...do the electrons make their way from the + and back the the - of that cap somehow.?
    Are the electrons beating a path off of the + of the cap, back through the recto tube, and through that winding of the PT...to the center tap again.?
    Thank You

    http://www.el34world.com/charts/Sche...HAMP_AA764.pdf
    https://www.youtube.com/watch?v=7zquNjKjsfw
    https://www.youtube.com/watch?v=XMl-ddFbSF0
    https://www.youtube.com/watch?v=KiE-DBtWC5I
    https://www.youtube.com/watch?v=472E...0OYTnWIkoj8Sna

  • #2
    Originally posted by trem View Post
    As well as the power transformer/power supply charging the negative terminal of the cap...do the electrons make their way from the + and back the the - of that cap somehow.?
    Are the electrons beating a path off of the + of the cap, back through the recto tube, and through that winding of the PT...to the center tap again.?
    Yep.
    Amazing!! Who would ever have guessed that someone who villified the evil rich people would begin happily accepting their millions in speaking fees!

    Oh, wait! That sounds familiar, somehow.

    Comment


    • #3
      When the instantaneous voltage of the transformer is higher than the voltage on the capacitor, electrons move from the cathode of the rectifier tube to it's plate recharging the capacitor. This happends at twice the line voltage frequency in most guitar amps. The capacitor charges to the peak voltage of the transformer minus losses in the rectifier and the transformer. When the transformer instantaneous voltage falls below the voltage on the capacitor, no current can flow in the rectifier because the plate is negative with respect to the cathode.
      WARNING! Musical Instrument amplifiers contain lethal voltages and can retain them even when unplugged. Refer service to qualified personnel.
      REMEMBER: Everybody knows that smokin' ain't allowed in school !

      Comment


      • #4
        R.G.
        Loud
        .....as always...Thank You.
        Do not know what I would do without this place (you guys).
        Thanks Again
        https://www.youtube.com/watch?v=7zquNjKjsfw
        https://www.youtube.com/watch?v=XMl-ddFbSF0
        https://www.youtube.com/watch?v=KiE-DBtWC5I
        https://www.youtube.com/watch?v=472E...0OYTnWIkoj8Sna

        Comment

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