[CW] Vibroplex Champion Question

[D.J.J. Ring, Jr.]

On Sat, Aug 31, 2019, 16:14 Richard Knoppow <1oldlens1 at ix.netcom.com> wrote:

>     North-South etc, doesn't mean much here. There three planes:
> fore and aft; side to side; vertical up and down.
>     I think the OP meant fore and aft. There is no adjustment for
> this. In the vertical plane the trunions should be adjusted to
> that the height of the contacts is close to centered. On the
> Original and other round pendulum keys, the height of the
> pendulum must be set so that the dot contact on the vibrator can
> be made exactly square with the fixed contact on the post. The
> height should be right so that the damper contact is slightly
> above or below the center of the damper disc, as you point out.
> Sometimes getting the combination right requires changing the
> spacing washers on the fixed dot contact post. The dash contact
> on all models has a considerable range of up and down adjustment
> to match the fixed dash contact. However, if its far off when the
> height is set to make the damper and dot contact correct the
> fixed dash contact post might need a change of shimming washers.
>      None of these bugs was precision machinery; there is enough
> slop in the design to compensate for some slop in manufacturing.
> One problem is that with age the thickness of insulating washers
> can change. this can usually be compensated with the metallic
> washers. Probably pix would make this a lot clearer.
>
> On 8/31/2019 12:35 PM, Gary H. Harmon, Jr. wrote:
> > Joe, the arm is centered in the north/south axis but not in the
> > east/west axis.  The little bump is hitting near the rear edge of
> > the roller.
> >
> > It is working fine but looks funny......not plumb, level, and
> > square.
> >
> > I think what I have is a Lightning arm assembly in my Champion bug.
> >
> > Life is complicated at times.  lol
> >
> > 73,
> >
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
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> =30=
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