DX 390 modification

[Jim Tedford / Nan Hawthorne]

I'm trying to find an article that came out a couple of years ago on how
to modify a Radio Shack DX 390. The article had instructions on how to
get rid of the muting when using the tuning dial. I found it on an ftp site,
but I've lost the article and don't remember where I found it. Anyone
know where this kind of article might live?

jdt

[Bob Loncaric, N3QNQ]

In article <509il9$1...@news.halcyon.com>, pen...@halcyon.com says...

It was on the Oaklands.edu FTP site, although I don't have the exact
address now. If you can't find it, email me privately and I will send
it to you. I'm sure I still have it somewhere.

It's a very easy mod, and its really worth it. You can search at much
higher speeds without having to wait for the receiver to go "kerchunk"
between each step.

I also disabled the ANNOYING beep that you get when you push EVERY
BUTTON ON THE RADIO.

[S.Manning]

Jim Tedford / Nan Hawthorne <pen...@halcyon.com> wrote in article
<509il9$1...@news.halcyon.com>...

> I'm trying to find an article that came out a couple of years ago on how
> to modify a Radio Shack DX 390. The article had instructions on how to
> get rid of the muting when using the tuning dial. I found it on an ftp
site,
> but I've lost the article and don't remember where I found it. Anyone
> know where this kind of article might live?
>
> jdt
>

There is an electrolytic capacitor just behind the volume control. remove
it and place a jumper across the two exposed points and solder in place.
This will eliminate the chuffing or squelching as it is often called.
There are two other capacitors just above this capacitor so make sure you
get the one just behind the volume control pot. Good luck.

7(Seven) AkA E.C...@genie.com
Bootlegging on a friends cpu.

[JStek]

In article <01bb9b7a$7c4a9a80$8452...@shannon.datasync.com>, "S.Manning"
<sil...@datasync.com> writes:

>Subject: Re: DX 390 modification
>From: "S.Manning" <sil...@datasync.com>
>Date: 5 Sep 1996 22:39:14 GMT

Gents/Ladies:
The other mod involved clipping a single green wire. The 390 tends to
go silent when the tuning knob is turned so you can't hear what your
trying to hear (brilliant, Sangean). Cutting the wire stops the mute.
Also, the mod allows audio during auto-seek so you can hear the weaker
stations (that won't stop the scan) go by. DX Ontario published the
details about two years back. I did the mod to my 390...took about 15
minutes. Marvelous !!
Jon