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"Bill Sheppard" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Brenda Ann wrote, > >It can also be noted that, though it tends > >to reduce the life of the vibrator contacts, >vibrator type car radios > will actually run > >from AC (at their rated voltage, not right > >out of the outlet.. LOL) The vibrator > >doesn't give a darn about what it's run off >of.. AC or reverse > polarity DC even. > > That's very true, but with one caveat- synchronous vibrators can't be > run on AC, because the B voltage will reverse polarity when the input > polarity reverses. Bill (oc) > Yes, but I've never seen a synchronous vibrator in an old car radio (don't know what they use in 6V farm radios), and also the B+ in those old car radios was derived by using a 0X4, 6X4 or equivalent rectifier.
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