[Johnson] Valiant Chirp suggestions

[Al Parker]

Hi Art,
    Wow, how did you (or google) find that pic of the bronze braid on the 
shaft?  I got looking at my website, and it's not referenced anywhere, but 
it is there.  I thought I had documented my work on that rig when I did it 
(late Fall 2007) but it never found it's way to a webpage.   I think I took 
pix of scope traces on the RF feedback problem, can't find them now.  There 
is a page on a Valiant, but that one was back in 2001, and only some pix.  I 
did do a lot of electrical cleanup, repl. electrolytics, etc., but didn't do 
any audio mods like I did do in a Viking I (that also needs more info on 
it's page).  I used the "new" Valiant a bit on 160 & 75 last winter, SB & 
AM, will be at it again when it cools off.
    Using a crystal will tell you if the chirp is in the VFO or not, so it's 
a good idea.  It's usually that 18k resistor in the VFO, and you should 
change that no matter.  I guess I'll have to go back to emails on the 
subject to see what else plagued me at the time, and try to put a page 
together.  (I'd much rather work on old radios than on website stuff.)  I 
also have more pix & info on the Viking I that I did abt 2 yrs ago, which 
was just delivered to a new owner at Shelby this yr (after being paid for 
but not picked up for over a yr).
    Keep us posted on your work.
73,
Al, W8UT
New Bern, NC
www.boatanchors.org
www.hammarlund.info

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


----- Original Message ----- 
<lots of snips>
From: "Artmouton" <k5fnq at cox.net>
Subject: [Johnson] Valiant Chirp suggestions


>I am finally finding time to work on the CW chirp in my Valiant.
>
> I plan on trying it with a crystal on CW to see if that would narrow the 
> problem down to the VFO area?  Is this worth the trouble?
>
> After that is it then going to be work on the VFO and the famous 18k 
> resistor in the VFO can.  Suggestions have been to mount a 22k 5 w 
> resistor outside of the box - not sure how that will work but it will be 
> on the list to do.
>
> The old email also talks about grounding the shaft of the plate tuning 
> capacitor because of the RF on it, especially on 40 meters.
> One suggestion by W8UT was to use motor brushes on the arm with a ground 
> connection - it even had a photo
> http://www.boatanchors.org//Valiantpix/100_0388.jpg
>
> So, what else is out there.  If I am going to take it down what other 
> suggestions.
>
> Tnx & 73, Art K5FNQ