[R-390] Low sensitivity on 7-8 Mhz band
n4buq at knology.net
n4buq at knology.net
Wed Apr 19 09:24:54 EDT 2006
I think that was Mr. Chuck Rippel.
http://www.r390a.com/Commonfail.htm#I%20was%20finishing
Third link down the list.
Barry - N4BUQ
> I am not sure anyone has mentioned this yet (although I may have missed
the
> post).
>
> Years ago, someone on the list gave me a tip to check out C 327, a 100pF
cap
> on the primary of T 207.
>
> Replacing it on 3 different radios so far has solved 90% of the poor
> performance up to 8mHz. Admittedly on one of the radios I had to
replace some other
> components related to the 1st crystal oscillator (V207), to finally fix
it.
> The problem was clearly, in each case, related to poor output of this
> oscillator.
>
> I used a high voltage NPO cap for the replacement each time.
>
> Hope this helps, and good listening!
>
> Harry KG5LO
> Saline, MI
> _____________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/faq.htm
> Post: mailto:R-390 at mailman.qth.net
> Unsubscribe: http://mailman.qth.net/mailman/options/r-390
>
>
>
More information about the R-390
mailing list