document updated 18 years ago, on Apr 5, 2006

Input: 14.5 - 27 volts DC or AC
Output: 11.68 ± 0.25 volts DC (datasheet said 12v, but close enough, especially given that car-supplied voltages are both unreliable AND super noisy)
Continuous output current: 1.5A (supposedly. I haven't actually tested it with my heat sink, but as Wouter notes, this sort of heat-sink is probably too small for full-current applications or where the input voltage is very high (eg. more voltage overage to dissipate as heat))
Peak output current: 2.2A (do 2.2amp wall-warts exist? I have a 1.1amp one, and it's the largest wart I've seen)

12V 1.5A output, 14.5 - 30 volt input, linear voltage regulator (Texas Instruments UA7812CKC)
50V 1.5A rectifier bridge (International Rectifier 1KAB05E)
0.33µF 50V electrolytic capacitor (Panasonic ECA-1HMR33)
0.1µF 50V ceramic capacitor (Kemet C315C104M5U5CA)
Blue 5V 20mA diffused LED (Chicago Miniature Lamp CMD264-UBD)
Two x 2-pin PCBoard terminals, (Radio Shack 276-1388)
470 ohm resistor, 5 for $1
2 jars acrylic red and black paint, $4

Circuit and assembly is done very similarly to Wouter van Ooijen's kit.

(front side shown... move mouse over image to view from the reverse side perspective)