This fellow sells them for about $16.

http://www.myradioroom.com/manualsales.html

However, the other poster makes a good point about measuring the draw.
I had an old KDK-???? of that vintage that lost its marbles after less
than a week without being powered up. No problem in the car, but a
hassle in the house if I was gone a few days.


--
Alan
WA4SCA