[Johnson] Johnson VFO Chrip & FREQ Jump

[richard]

Thanks Roy..
Well said all of it and the Transmitter has the 3 wire plug & a fuse mounted on the under side near where the power comes in but not on it & as to the things in that story I see that it has been done to this Valiant & the 2- 866 tubes have been replaced with what look like 2-- IN2637 tall black hard type tubes & Thank you for the Info on the coupler as I do see it and it look all good & the Dial turn really Nice & Smooth ..
Richard just pointed out the Kit Manual which I hope to find soon..
Thanks Roy

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-----Original Message-----
>From: Roy Morgan <k1lky68 at gmail.com>
>Sent: Jul 2, 2015 12:47 PM
>To: richard <ramnaz at peoplepc.com>
>Subject: Re: [Johnson] Johnson VFO Chrip & FREQ Jump
>
>
>On Jul 2, 2015, at 3:28 PM, richard <ramnaz at peoplepc.com> wrote:
>
>> Has anyone seen this if you Google search-- Johnson VFO Chrip & Freq Jump there is some Info on the Valiant % grounding..
>
>Richard,
>
>Yes, people have had that problem with Valiants.  I did not search for it now, but have some information saved here about that situation and trouble.
>
>Basically what happens is RF energy from the final gets back into the VFO compartment via the VFO shaft and causes trouble.  The solution is to improve the grounding of the shaft.  If I remember right, this happens on 40 meters.
>
>I suggest you don’t go looking for that problem unless it actually happens to you.  If you do eventually replace the VFO coupler with the new one, that is the time to make the changes needed to cure and prevent the chirp and frequency jump problem.
>
>If I remember correctly the VFO coupler that breaks sometimes is outside the VFO compartment, between the VFO and the front panel.  You should be able to see it if you peer down into the radio from the top.
>
>By the way, if your radio has the original fused line cord plug, replace it with fuses elsewhere and a three conductor line cord.  THAT THING CAN KILL YOU.
>
>Roy
>
>
>Roy Morgan
>k1lky68 at gmail.com
>K1LKY Since 1958
>


Richard Morris