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Re: [cw_bugs] New to the group

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  • David Ring
    I measured the spacing on mine and posted the measurement: 2 mm - I wrote a long email and it was about bugs - how to use, adjust and so forth. Questions
    Message 1 of 10 , May 21, 2007
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      I measured the spacing on mine and posted the measurement: 2 mm - I
      wrote a long email and it was about bugs - how to use, adjust and so
      forth. Questions that come up.

      I'm sure you can find it by searching the archives of this group.

      I measured that a good spacing between the dot contacts (post and
      spring contacts) is 2 mm. This was the minimum spacing that I could
      achieve without bouncing the dot contacts.

      2 millimeters = 0.0787 inches
      3/16 inches = 0.1875 inches
      3/32 inches = 0.09375 inches

      So I was probably talking about 3/32 inch spacing in my comments which
      would come out to about the same measurement.

      This was the minimum spacing - with slower speeds wider spacing feels
      and works better - just like a hand key. Send slow - space wide.

      73

      David "Send Slow, Space Wide" N1EA
      Beating assorted metal into mangled morse for more years than long
      winded phone operators can talk.

      =30=


      On 5/21/07, Troy, W6HV <w6hv@...> wrote:
      >
      >
      >
      > David,
      >
      > After some experimenting with the spacing, I could hear those "dirty dits" when the spacing was too close. The final spacing is very close to but slightly wider than 3/16 inch. The major change was to increase the tension spring as you indicated. The dits sound clean to me.
      >
      > Our CW net is about to start and I'll see if I can use this bug.
      >
      > Thanks for the help. I found I1QOD's website and will check it out.
      >
      > 73,
      > Troy, W6HV
      >
      > ----- Original Message -----
      > From: David Ring
      > To: cw_bugs@yahoogroups.com
      > Sent: Saturday, May 19, 2007 10:57 PM
      > Subject: Re: [cw_bugs] New to the group
      >
      > Troy,
      >
      > The trade-off for closer spacing than 3/16 inch is that you risk getting bouncing dot contacts. When the vibrator vibrates, the lever doesn't clear correctly and the dots spark. Split dits - some call it.
      >
      > I recommend more tension on the dot lever to force the operator to give the mainspring more momentum.
      >
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