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erstwhile ???

Discussion in 'Electronic Basics' started by phil, Apr 15, 2004.

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  1. phil

    phil Guest

    Someone mentioned the erstwhile multivibrator, is there such
    a thing, yahoo doesn't have it ?
     
  2. CFoley1064

    CFoley1064 Guest

    Subject: erstwhile ???
    Hi, Phil. You can check Google for anything in these newsgroups more than a
    few days old. Looking at the thread, they were talking about an FM transmitter
    oscillator. I'm not sure what happened to the link, but it's not accessible
    right now, so I can't say for sure. It seems they were either talking about a
    Hartley oscillator or a "Kaliatron" oscillator. The second comes up blank both
    on Google and in the attic upstairs. The use of the word "erstwhile" was a
    rhetorical flourish someone used to talk about oscillator exposition from
    memory in one of his theory classes. The word means "former" or "in the past".

    Good luck
    Chris
     
  3. phil

    phil Guest

    I know this thread, the link is still working ('cause it's mine)
    Thanks for pointing out that erstwhile is actally a word, I
    think this poster was trying to confuse me back there.
    I think it is a Hartley after all.
     
  4. phil

    phil Guest

    probably not, ignore me.
     
  5. Dbowey

    Dbowey Guest

    aaaaaaaaaaaaaaaa posted:

    << probably not, ignore me. >>

    If you mean probably not a Hartley, I agree. It's a multivibrator using LC
    instead of RC.

    Consider yourself ignored.

    Don
     
  6. phil

    phil Guest

    So what is the difference between a multivibrator and an oscillator such as
    Hartley ?
     
  7. dB

    dB Guest

    (CFoley1064) wrote in message

    That's because it's spelled Kalitron.
     
  8. Dbowey

    Dbowey Guest

    Phil posted:

    Don posted

    So what is the difference between a multivibrator and an oscillator such as
    Hartley ? >>

    A significant difference is the the Hartley uses a tap on an inductor to obtain
    feedback.

    A multivibrator typically uses a capacitor from each output to the input of
    it's mirror stage.

    Google can give you everything you need to know about each.

    Don
     
  9. JeffM

    JeffM Guest

  10. phil

    phil Guest

    Is a multivibrator the same as an Astable, if so, what is the RC time
    constant
    for the circuit in question, and if the oscillation is determined by the
    capacitors
    from output to input, how does the tank circuit manage to alter this
    frequency
    during the modulation.
     
  11. JeffM

    JeffM Guest

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