[AMRadio] DX-40

Ken Zuercher hepcatrevival at yahoo.com
Sat Apr 15 13:16:58 EDT 2006

I rebuilt my DX-40 a few years ago and bit the bullet.
I changed the filter caps and unfortunately the power
transformer. It all works fine. I would recommend just
throwing awaw the filter caps as they are likely to be
very old and the hum might be due to them. Good luck,
i'll keep my ear out for your progress. 

--- Rick Brashear <rickbras at airmail.net> wrote:

> A friend and I are working on his DX-40.  It works
> beautifully with the 
> exception of a hum (sounds more like 60 than 120
> cycles to my ear) on 
> the carrier when in phone mode whether the mic is
> connected or not.  We 
> have just begun to look at it, but I thought if
> someone here has had 
> experience with the same problem it could possibly
> save a little time.
> Thanks,
> Rick/K5IZ
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