[R-390] setting the PTO endpoints (long)

[DJED1 at aol.com]

Yep, adjustments can be done with the PTO in the radio.  As  noted, I removed 
the PTO to take out the nut which covers the adjusting screw,  then used a 
cut down jewelers screwdriver to do the adjustment.  I even  went one better and 
did all 42 adjustments on a Cosmos with the PTO in the  radio.  In that case, 
adjustment was unmanageable while pulling the PTO  out, as I was trying to 
get resettability to 100 cycles or so.  It was a  case of doing it in the radio 
or making a special test fixture.  But it was  an undertaking, using a small 
mirror to see where the slot was on each adjusting  screw.  By the time I got 
done, I swore I would do whatever it took to  build a test fixture next time.
Ed
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