My SDU-5/E battery adapter arrived in yesterday's mail. I had ordered it Sunday night, paying via PayPal so this was quick service.
I loaded two 123 Lithium batteries in it and screwed on the adapter. Bingo! The strobe started working right away.
These are made by Brooke Clarke N6GCE. The machining is first rate.
I ordered another one for my second strobe.
http://www.pacificsites.com/~brooke/5BA.shtml
Check out Brooke's site for other power adapters for military gear.
www.prc68.com