Marchal Fantastic Conversion to H3 Bulbs
Marchal "Fantastic Fog/Cornering Lamp
used from the 1950's through the 1970's
Old Tungsten Bulb is very inefficient, H3 available in 6v, 12v yellow and clear
Pry open the 3 tabs noted, slightly loosen the 2 other tabs.
Cut Positive Contact off with Dremel Tool, (could probably be left on)
Notch Wire End to fit over Positive Screw
Drill 3 Holes (3mm) in Original Bulb Holder, Grind edges of 1/2" Fender Washer
to 1.625" OD, center on front side of Original Bulb Holder and Drill holes to mount
them together. Place H3 bulb on washer with filament horizontal and mark and drill holes.
Mount Bulb to Modified Washer with 3mm screws 12mm long
Grind head for clearance to original Bulb Holder, run 1 Nut to hold
screw to washer, position H3 Bulb to rest on 1st nut
then lock washer and nut to retain Bulb.
Wires attach in normal way