[AMRadio] SP-600

Larry Will lhwill at verizon.net
Thu Dec 28 16:15:59 EST 2006


The upper scale on the main dial is the logging scale coupled with 
the bandspread.  With the main dial rotated to its left end and at 
the mark before the first 0 in the main dial logging scale, the right 
dial should be approximately on zero.  On re-assembling the gear 
train, as I remember, the meshing of the gears will get that pretty close.




At 10:19 PM 12/27/2006, you wrote:
>If I'm not mistaken, I believe the right-hand dial isonly a logging scale,
>and not calibrated to anything.  But I could be wrong.  I have a JX-17
>manual here. Let me go gaze upon it, and report back.
>Ed, VA3ES
>Rick Brashear  sez:
>Can someone tell me a few things about the SP-600/JX-17 mechanical
>alignment?  On mine, the left dial seems to be pretty close to accurate,
>but the band spread or right dial is way off.  Since they turn together
>and the right one is attached to the variable, how can I get the left
>one right on the money and bring the right one in sync?  I tried looking
>through several manuals and I am too dumb to understand or they are not
>telling me.  I fear it is the first reason...
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