[R-390] Cosmos Dis-assembly

[rbethman]

Russ,

I'm confused!

How can you use the PTO if the slug is off its track?

It may be that the PTO was turned too far while NOT installed.

Please enlighten us.

And YES, I put US back on the group.  Group "wisdom" is better in the 
details than only one person!

This is where Roger "Flowertime" is extremely helpful!

< I defer to THE Expert in the fine details! >

Bob - N0DGN

On 4/18/2010 2:08 PM, wa3frp at aol.com wrote:
>
> Hi Bob, Thanks for your message.  I've been inside, tried some 
> adjustments but was not successful as the tuning slug looks to be 
> damaged.  It appears to be off its track and too far down in the 
> endpoint adjustment inductor. So, I've close things up and put my 
> R-390A back in use temporarily. I need a nice solar flare, something 
> that knocks the HF signals off the air for a few hours, so that I can 
> go back in and unsolder the two leads on the endpoint adjustment 
> inductor and see what it will take to get the variable inductor to vary.
> While things were opened, I did unscrew the cap to see what the screws 
> looked like associated with linearizing the PTO.  They sure are tiny!  
> First things first. Once the endpoint adjustment has been completed, I 
> do plan to take a look at linearization.
> Thanks and 73
> Russ WA3FRP
>
>
> -----Original Message-----
> From: rbethman <rbethman at comcast.net>
> To: r-390 at mailman.qth.net
> Cc: wa3frp at aol.com
> Sent: Sun, Apr 18, 2010 11:46 am
> Subject: Re: [R-390] Cosmos Dis-assembly
>
> Russ!
>
> Okay! Now the "original" post finally got the can off.
>
> Now - How is it going?
>
> Any reall issues with the endpoints?
>
> How about all the "intermediate" alignment screws? ( Yes - they ARE a 
> pain! )
>
> Don't worry about pressurizing it after you are done. BTW - it is an 
> everyday schrader valve, just like on the car tires.
>
> Talk to us!
>
> Bob - N0DGN

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