[OM] question about external power source

[Tim Chakravorty]

Hi Zuiks,
I would like to have an external power source for my OM-PC, as it eats batteries
like crazy. ( I can barely get 2 or 3 rolls with a fresh pair!, but metering 
seems to be OK) 
I got a Radio Shack battery holder that holds 2 AAA batteries, but sticking it 
to the body with plastic tape
makes it a flimsy set up. I have never used a winder before..can anyone tell if 
a
winder or a MD has provision for supplying power to the body ?
Thanks,
Tim