where is everyone getting this diode from i googled it but appears to be more of a uk thing.
doing some googling it looks to be a standard 3amp diode, Radioshack does have, but its not the N5402 part number... does that matter?
edit: if your radioshack says they dont carry that, go check yourself.
part number 2761143 its a 3amp 200v diode $1.59 for you budget watchers