[R-390] I'm a lucky fellow! (Cosmos PTO)

[Philip B Atchley]

Hello all.
Earlier I posted a question about a Cosmos PTO that is in a receiver I'm
fixing up for another ham (couldn't find the end point screw).

Any-hoo....  After posting the question and before any answers came in I
did finally find a reference to said adjustment.  These old eyes aren't
what they used to be and I missed it when I examined the PTO (and the cap
screw was missing too).

This PTO was over 11kHz "wide" and general consensus was that I'd
probably have to remove a turn of wire. 

Having to "remove" the PTO to get to the end point adjustment with
anything that I had (Jewelers screwdriver) I decided to give it a shot
anyway.  I turned the screw 3/4 turn anticlockwise (same direction I had
to turn the one on my Collins PTO). That made things worse, so I pulled
the PTO, gave the screw  about 2 3/4 turns clockwise, slapped the unit in
and it's GOOD TO GO!!  Yes, linearity could be a little better but "what
the hey"?

Here are the readings I got when I "Zeroed" the PTO at 10000 kHz.

10000.0
10099.4
10200.5
10300.0
10400.0
10500.2
10600.4
10700.5
10800.4
10900.5
10000.4

Needless to say I didn't pull it out again.  As I said, I'M A LUCKY
FELLOW 8^)  

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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