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Digital Variable Capacitor

Discussion in 'General Technical Questions and Answers' started by 9H1FQ, Feb 13, 2021.

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  1. 9H1FQ

    9H1FQ Ham Member QRZ Page

    PE64904 Is a digital, variable capacitor, that can be used in many ham projects, especially as a fundamental phase shift networks.
    Wish I had the knowhow to design !
     
  2. KH6AQ

    KH6AQ Ham Member QRZ Page

  3. WA7ARK

    WA7ARK Ham Member QRZ Page

    ...now if we could get one that could be used in a remote, 1kW tuner at 1.8MHz...:D
     
  4. W7HV

    W7HV Ham Member QRZ Page

    There's the good ol' and venerable varactor. Combined with a v source and DAC, you have a digitally controlled capacitor.
     
  5. SM0AOM

    SM0AOM Ham Member QRZ Page

    Was involved in a project dealing with a frequency agile antenna tuner for a submarine HF antenna using high-power PIN diode switches some years ago.

    Very expensive and not very reliable...

    73/
    Karl-Arne
    SM0AOM
     

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