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Re: slowing bugs down

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  • n6vl
    Fred, 50 years of using bugs! I will be 50 years on the planet in a few months, hi hi. So are you saying the Vari-Speed is better than an Extendadot? In any
    Message 1 of 31 , Mar 10, 2007
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      Fred,

      50 years of using bugs! I will be 50 years on the planet in a few
      months, hi hi.

      So are you saying the Vari-Speed is better than an Extendadot? In any
      case I will be comparing the two within a few days. I ordered the
      Vari-Speed based on your comments.

      I compared my Extendadot with my original mod and they do feel
      different. Just reading your comments makes me want to try other
      ideas while waiting on the Vari-Speed. I have two weights, the 1 oz
      and the 0.8 oz. I could bolt them together, side by side, at the end
      of the arm to see the difference. Putting both weights directly on
      the arm was not a good experience.

      I keep wondering about different bugs other than the Champion. The
      Champion is supposed to be a low end bug. Is this correct? I need
      to look or eBay or eHam.net for other bugs. I was looking at a J-36
      on eBay last week and the price really shot up. I prefer to stick
      with Vibroplex because of parts.

      I just found yet another straight key, the Navy Flame-Proof. This one
      is in mint condition and blows away other straight keys rivaling my
      Swedish Pump key clone. OK straight keys are off topic. But I like to
      brag about a good one.

      Now if they would make a nice mini-bug! Bug aren't portable. The Navy
      Flame-Proof is small enough to go portable.

      73,

      Steve N6VL
    • nzeronv
      Thanks for sharing your insight. I second your approval of the Vari-Speed. I was originally skeptical of it because of torsion effects, which I reasoned could
      Message 31 of 31 , Mar 2, 2008
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        Thanks for sharing your insight.

        I second your approval of the Vari-Speed. I was originally skeptical
        of it because of torsion effects, which I reasoned could rub the dot
        contact vertically during use, especially considering the thinner main
        springs currently manufactured into Vibroplex Originals. I notice no
        bad results, however.

        The flat version of the Vari-Speed is especially useful with a
        Vibroplex Champion model, which has no damper bridge to restrict the
        position or rotation.

        With my configuration, the dot speed is 15 to 28 WPM. If any of you
        can send 18-20 wpm with a straight key for an hour or more with no ill
        effects, more power to you -- I can't.

        73,

        Jack - N0NV



        --- In cw_bugs@yahoogroups.com, "Trail Fox" <KT5X@...> wrote:
        >
        > From my observation across (fifty years) of bug use...
        >
        > * Additional weights so increase the mass of the pendulum as to make
        operating it both different and non-instructive. during professional
        use days that simply wasn't done even for learning.
        >
        > * adding more weights doesn't slow the bug down much because they
        wind up being placed closer to the pendulum.
        >
        > * The large diameter weights used by some Mac bugs and E F Johnson
        have a MUCH better effect on speed becauseit puts more weight further
        out on the pendulum.
        >
        > * Wrapping solder around the wieght at the end of the bug will slow
        the bug down much more than adding a second weight.
        >
        > Unfortunately, the large diameter weights are harder to come by, and
        the holes in them don't necessarily fit on vibroplex bugs.
        >
        > Rather than extensions that add SO much mass and change the feel of
        the pendulum, or extra weights that do the same thing with relatively
        little effect on speed, I use the recent remake (by Tim Soxman) of the
        Hills Speed-changer. vibroplex sells them under the name, Varispeed.
        >
        > The Varispeed uses one weight, and the device itself is about the
        equivalent of a second weight. it provides near instant speed
        changing by rotating the arm. It will slow the bug down way slower
        than second, third, or fourth weights because by rotating it the small
        weight can extend the length of the pendulum which does more than
        adding weight does. in so doing it does not add mass like extra
        weights or the extension arm.
        >
        > the Varispeed is the way to go IMHO. Here is a Varispeed on my
        (restored) 1918 Vibroplex...
        >
        >
        >
        > And the very best configuration of all is a Varispeed on the old
        U-shaped damper blue Racers, because without the damper in the way,
        the varispeed and its weight can rotate straight back and slow the bug
        down to a crawl.
        >
        > A few other comments on bug speed...
        >
        > The slowest American bugs I have encountered are the 1930's vintage
        Macs.
        >
        > The slowest bug I have ever encountered, by far, is the Australian
        Simplex-Auto. This is a right-angle bug that uses a release mechanism
        like Coffe's Mecograph of the early 1900's. It will go ten wpm,
        heaven forbid.
        >
        > Western Union established a fixed speed of 28 wpm. I have found old
        bugs with the weight soldered in place at this speed.
        >
        > With best wishes,
        >
        > FD - kt5x
        >
        > [Non-text portions of this message have been removed]
        >
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