| Find a large capacitor at the nearest
surplus store. Most power supplies have them. You want at least 50,000
uf (micro farads) and rated 15WVDC or higher. The diode is a 6 amp rectifier
type that you can get at Radio Shack. The Capacitor is charged through
the diode as the turn signal flashes. It then discharges into the relay,
and will keep the relay on for a few seconds after the turn signal is off.
The bigger the capacitor, the longer it stays on. 50,000uf is good for
about 3 seconds. Tap into the low beam wire so the cornering light operates
with the low beam headlights on. High beams light the road good enough
to negate the need for a cornering light, and if traffic is oncoming, you
can't use the brights to find the turn anyway. A left turn is farther
across the road, and easier to see at night with low beams. It's the right
turns that are hard to see on a pitch black road. That's why I only did
the right side on my truck. |
