[R-390] Collins PTO Set.

[Philip B Atchley]

Hello all.
After advice from a couple folks I decided to leave the Collins PTO in
this 67EAC that I'm fixing up.  I was a little concerned about it because
the end point was so far off (over 6kHz).  However, it came in nicely. 
The hardest part of the entire job was getting that cap screw back into
place!  It kept wanting to land "upside down" and there wasn't enough
room to hold it with my small seizers while starting it.

1.  End point adjusted to less than 50Hz error end to end (I had a long
skinny screwdriver that let me adjust it without removing front panel).

2.  Linearity "worst case" is about 600Hz in the 600kHz area.  I think
the book says it should be under 500Hz.  IS THIS TYPICAL FOR A COLLINS
PTO? I can (will have to) live with it in any case.

Next step is to "Select in test" Crystals between the two sets to try to
get a "closest match" band to band(Don said I could).  

THEN I'll start on the slug rack alignment!

73 de Phil  KO6BB
Loving home provided for wayward Boatanchor Receivers
ko6bb@juno.com
Merced, Central California
37.18N  120.29W  CM97sh

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