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There are a few parts necessary, but all of them
are pretty easy to get
| Part Name |
Use |
Cost |
Where to Find |
| Halogen Lamp |
light src |
$6 |
Lighting store/Online |
| MR-11 Socket |
for lamp |
$6 |
Lighting store/Online |
| Halogen Torchiere |
housing |
$0 |
In trash |
| Solid Core/Stranded Wire |
Wiring circuitry & Battery |
$0-$5 |
Phone wire and thin stereo hookup is fine |
| Perfboard |
circuit substrate |
$4 |
RadioShack, etc |
| LiIon Battery |
power src |
$20-$60 |
EBay, electronics store |
The rest are electronic components, all available from DigiKey
| Part Name |
Part Number |
Cost (each) |
| Rail-to-rail opamp |
LMC6482IN-ND |
$2.05 |
| Power P-FET |
IRF9Z30-ND |
$1.28 |
| 5.1 Zener |
1N5231BDICT-ND |
$0.36 |
| 10K Pot w/Switch |
270X232A103B1B1 |
$3.48 |
| 0.1ohm 1/2W sense resistor* |
605HR100-ND |
$0.42 |
| Mini Banana plugs |
J457-ND |
$1.42 |
| DC Jack (for battery connection) |
CP-102A-ND |
$0.38 |
| DC Plug (for battery connection) |
CP-002A-ND |
$0.38 |
| Various resistors |
Search website |
$0.10 |
* If you're using a 10W or less bulb, 1/2W
is ok. Otherwise, 1W is best.
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