I bought a Radio Shack Shack switchable DC power supply that (supposedly) can put out 1.5, 3, ... up to 12 VDC. I bought it to supply 1.5 volt Miniatronics LEDs, but unfortunately it puts out 3.5 volts instead of the 1.5 (whatever happened to the time when you could count on Radio Shack :mad: )...