[R-390] Reduced 500-1000KHz sensitivity

[Cecil Acuff]

Don't misread the instructions...DO NOT OIL THE SLUGS!

Clean them and their coil form bores with Q-tips and dust with Talc....

Cecil...
----- Original Message ----- 
From: "Barry Williams" <ba.williams at charter.net>
To: <r-390 at mailman.qth.net>
Sent: Wednesday, March 16, 2011 7:53 PM
Subject: Re: [R-390] Reduced 500-1000KHz sensitivity


> Joe,
>
> One of mine has a slug that will hang up infrequently when changing mHz
> settings. I'm now in the habit of rocking the mc knob a little to settle
> the slug.
>
>
> the other other Barry
>> The quickest thing to check is to see that the slug racks are not hanging 
>> up and that the cam followers are in fact following the cams tightly. 
>> there could be crud built up on the cams or rollers.  Also, check that 
>> all of the springs are attached to the slug racks.  Check the slides for 
>> lumps of crud, etc.
>>
>> Clean, clean, clean, oil.
>>
>> Joe
>>
>>
>>
>>
>> --- On Tue, 3/15/11, Ian Gallimore<iangallimore at rogers.com>  wrote:
>>
>>> From: Ian Gallimore<iangallimore at rogers.com>
>>> Subject: [R-390] Reduced 500-1000KHz sensitivity
>>> To: "R-390A Group"<r-390 at mailman.qth.net>
>>> Date: Tuesday, March 15, 2011, 11:05 PM
>>> Hi, group,
>>>
>>> My 390A was purchased from Fair five or six years ago.
>>> I've recently noticed a significant decrease in sensitivity
>>> in the 500-1000KHz band. Other bands appear to be OK. Just
>>> before this occurred, I noticed that the sensitivity could
>>> be dramatically increased by turning the MHz knob a little
>>> toward the 01 setting and back, but this no longer helps.
>>> Has anyone else noticed this?
>>> Any suggestions gratefully received.
>>>
>>> 73
>>>
>>> Ian VA3ODA
>
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