Hi Lou, the Sangean equivalent radio is the ats803, and or the 803A, and or 
803B./I've heard of all three.
In terms of a memory battery,  Since the memories are volatile/will 
disappear when power is removed, or AA cells are removed, there's likely not 
any other battery supply for the radio's memories and clock, other than the 
AA cells.  Meanwhile, in terms of a reset button, I'm not sure, although I 
never remember seeing/feeling one, and I've experienced several of the 
units.
Have you checked icanworkthisthing.com for a manual?   that should answer 
the reset button question---in fact you might find a manual at 
radioshack.com or 1800theshack, although considering the age of the unit 
that's a longshot.  *ANother longshot, Universal Radio may have some info, 
as they do sell those units used, quite often.  Those old radios do sound 
great, and usually work very well. Have you tried to bring the unit up 
strictly with batteries?
HTH, Danny.


----- Original Message ----- 
From: "Lou Kolb" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, August 27, 2009 7:44 PM
Subject: dx440 question


>I have an old Radio Shack dx-440 am/fm/sw receiver.  Apparently, it's made
> by Sangean and they have their own model number for the same radio. 
> Anyway,
> after nearly 20 years of faithful service as my bedside radio, it has
> stopped working.  Actually, that's not quite accurate.  It comes on when
> plugged in but none of the controls work.  Anyone know if there is a reset
> button on the thing.  Or maybe, if there is a lithium battery for the 
> memory
> it has finally given out.  Guess I can't complain after nearly 20 years 
> but
> I'm not willing to say goodbye to the thing just yet.  Thanks.  lou