Need 2-3 female barrel plugs

[dsv101]

Something like that

 

[samjc3]

What size?

 

[dsv101]

idk, the standard ones (ones that work for most eleectronics)

 

[Snipeye]

There are lots of 'standard' sizes, as the sizes are standardized. A pretty common one, however, is 3.5mm.

 

[dsv101]

that sound right, its the size thats in the nes