> i received a catalog in the last few months that had a 9 volt powered item
> that you plug into the cigarette lighter and kept things like
> memory radios
> etc alive while you changed a battery.
I didn't see the catalog, but the device is easy to build. You'll need a
plug for the cigarette lighter, a small power diode (like 1A 50 volts), an
in-line fuse and a 9v battery clip. Should be able to find all the parts at
Radio Shaft.
Or there's
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47802
Randall
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