Ok - just heard back from Rich Perlman, who wrote one of the DAT-Heads posts above. Text of the email follows; the part numbers mentioned are from the Mouser catalog. I'll probably end up ordering both and seeing what works best. The one he uses has a locking tip plug which will offer *some* resistance to being pulled out (as opposed to the other one which offers none, and the 760K which has the screw-down collar). Hope this helps some folks.
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Dave,
The one I use is the 172-1015
http://www.mouser.com/catalog/specsheets/0417108.pdfI have not used the 171-3215
http://www.mouser.com/catalog/specsheets/041774.pdfThey're cheap enough that you can buy a few of each and use the one that you like best.
I prefer not having to solder in tight spaces, so I bought the one with
the leads attached.
[snip]
If you go for the 172-1015, I suggest that you insert it into the ADC-20
before connecting the other end of the cord to the battery's connector.
In fact, I just leave the power plug in the ADC-20 all the time. Once,
before a show, I rubbed the plug against the body of the ADC-20 and
shorted out my battery (I also highly recommend an inline fuse on every
battery you build!). I always carry spares, so it only took me 30
seconds to be powered up.
Good luck.
Rich