There's a nice spot over in the corner of the controler to mount the thing too, complete with a 2v spot that turns on/off with the controller to turn the transistor on/off to turn the L.E.Ds on/off.
Just make sure like G0t M4xx 21 said you use an NPN transistor and get the Emitter, Base, Collector connected right. In these pics I used an NTE289A, but any small NPN in a TO-92 or Giant TO-92 package will work just fine.TOP SIDE OF BOARDBOTTOM SIDE OF BOARDTRANSISTOR AND RESISTOR INSTALLED
(NOTE: Make SURE you install your transistor correctly, it may not have the same Emitter Base Collector configuration as this one)SWITCHED SOURCE
The Black wire is connected to the Collector of the transistor. The Red wire is connected to your + voltage source.
The AA spot will put out 3v, the Rechargeable and AA spot will put out 2.5v-2.7v
Edited by RDC, 26 May 2006 - 07:24 PM.