You can get a whole slew of extra Batteries to run your radio;
OR a solar Cell ( Either Edmund Scientific or C Crane sells them)
OR a 12 Volt motorcycle battery...

Or a house type emergency Generator..

Hope this helps..
Harvey


Subject: Calling N8KDV
From: "Maximus"
Date: 1/3/2004 5:18 PM Eastern Standard Time
Message-id: k.net

Hi.
As a ham radio man, I am hoping you can help me out. I have a DX394 receiver
and usually use ac to power it. I can run from a car battery, with the
adaptor. It requires 12 volts at 500 Ma. What I am wondering is if I can
build an emergency power supply so I can listen using batteries when the
trees take out the power lines .

What I thought I could do is get a 9v lantern battery and add two 1.5 volt D
Cells . I am not mathematically inclined in the least. If I connect the
positive of the lantern and the negative of the lantern to the corresponding
terminals of the two D Cells, and connect all that to the adaptor plug for
the back of the receiver, will it supply sufficient current to run properly
or not ? I could probably get an actual car battery, but would rather not
have that in the apartment.


V Solidarity