Quoted from weaverj:
which bulbs get yellow condoms on them? i saw this on the MM game specific parts list:
not in the manual, however.
Originally Williams used the yellow sleeves for the 555 bulbs in the spotlights (04-10094-2 reflector & socket assy) directed at the castle. These are the ones mounted on 1/4 in hex posts which were attached to the left plastic ramp.