sammichSID psu plug size clarification

[strategy]

hi I'm new to forum (maybe some users will know my handle from my techno and noise records or the electro-music, muffwigglers, etc.) -

 

glad to be doing my first midibox projects now and joining the forum!! 

 

I'm finishing assembly of sammichSID. the parts list in the build guide specifies the 2.1mm jack for power entry. 

 

While I was looking on the midibox sites for links to the suggested power adaptors (like the jameco one here http://www.midibox.org/dokuwiki/sammichSID) the listed spec is 2.5mm. Should I buy this one or, the same thing in 2.1mm? 

 

thanks to all..

STRATEGY

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