[R-390] Is anyone selling R-390A Cap kits?

[Don Reaves]

HI Bob,
At a minimum these are the caps I replace before even powering up a
long dormant R-390A.

C-553 in the IF deck.  Originally .01 at 300V, it blocks DC to the
mechanical filters.  You don't want this cap to leak and wipe out your
filters.  This is where I use a 600V Orange Drop because there is room
to neatly install the larger cap.

C-609 in the Audio deck. This is an 8 ufd 30V on a bad acid trip.  As
it rots it will damage the circuit board underneath it.  I use a
common 10 ufd at 35V axial for a replacement.

C-606 and C603 in the Audio deck.  These are the two plugin power
supply electrolytic filter caps.  I have rebuilt these caps and used
third party replacements.  hayseedhamfest.com is one source of
replacements.  There are probably others but I haven't compiled a list
lately since I have one Chuck Ripple rebuild kit left in the arsenal.
I no longer try to reform 50 year old electrolytics.  Life is too
short.

I get these 4 suspects replaced then do normal troubleshooting for any
individual components that might need replacement.


Don
W5OR WD2XSH/15



On Sat, Sep 3, 2011 at 1:59 AM, Bob - K2KI <k2ki at comcast.net> wrote:
> Hi all,
>
> I have an R-390A that is in desperate need of a cap overhaul. I sent a
> message to Walter Wilson from the R390A.us site and his reply was that
> he was out of stock and by the sound of it, might be for a while. Is
> anyone providing these kits? Or should I just go ahead and order the
> caps separately? I trust Orange drops are OK or should I use something else?
>
> Any help here would be greatly appreciated.
>
> Thanks...
> Bob de k2ki
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
Don Reaves  W5OR
8101 Barrett Rd.
Roland AR 72135
VOIP landline: 843.868.1287