In the event that anybody else is looking for bulbs for your 6 volt systems, the link that Tiny attached to post was very helpful. Some of the bulbs were available at NAPA, or other parts store. The Amber Park Light/ Turn Signal, wasn't available in the 6 volt version. But the 1154A, was available and at a fair price. Here is the link again.
http://www.taillightking.com/light_bulbs.htm I have some on their way now. Thanks to everybody that gave advice and direction.
Rugo
