Supply list: (DSE901 Passthru)
Radioshack part# 274-1583 -
Size N Coaxial DC Power Jack w/Switch - RadioShack.com - Size N DC Power Jack w/ switch
Radioshack part# 270-414 - 2 'AAA' enclosed battery holder -
Enclosed "AAA" Battery Holder - RadioShack.com
Radioshack part# 275-003 - 12vDC 50mA SPST 6.2x6.2mm SMT Tact Switch 9mm high -
12VDC 50mA SPST 6.2x6.2 mm SMT Tact Switch, 9.5mm High - RadioShack.com
USB cable - you only need the end that plugs into your PC, so you can tear up an old keyboard or just buy one - frys has some beige ones for $0.99.
Tools:
Soldering Iron - If you're buying one, buy an adjustable temp, don't skimp here.
Solder
Solder Flux
Wire Strippers - I prefer manual over automatic for smaller gauge wires, but note that standard USB cable wires are like 26 or 28 gauge, so buy accordingly.
Thin Wire (I use 22 gauge)
Flush-cut Sidecutters
Hot-Glue gun
Drill w/ full set of bits - Wal-mart has a great drillbit set for $17
Bookmarks