[Johnson] Johnson VFO chirp

[Al Parker]

Hi all,
	Roy may be remembering the mod I did to cure mine.
<http://www.boatanchors.org/valiant.htm>
	I've just kept silent because everyone else seemed to have their own 
cure and I didn't need to add to the muddle.
73,

Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole

On 3/7/2014 12:28 PM, Roy Morgan wrote:
>
> On Mar 7, 2014, at 10:58 AM, Larry Oneets <oneets123 at gmail.com> wrote:
>   Also make sure that the shaft going to the front panel is grounded
>> properly. Clean the bearing where the shaft goes thru the front panel.
>> This fix has been written up in several places and it does work for 40
>> meter chirp.
>
> All that sounds right.  AND, I remember one fix posted that the problem is RF getting into the VFO compartment via the VFO shaft.  The fix was to install a wiper on the VFO compartment that rubbed against the shaft where it enters the compartment - a direct grounding contact on the shaft.  Possibly a flexible braid soldered to the case and fastened to the shaft would work, too.
>
> Roy
>
> Roy Morgan
> RoyMorgan at alum.mit.edu
> K1LKY Since 1958
>