JACK ALBRECHT is living in Fairfield CA, (707)426-9422. He is still associated with Airtronics and they may have an EMail for him.
PHIL KRAFT is in a home somewhere in S. CA, probably around Oceanside.
BOB DUNHAM passed away longer than "recently" as someone commented. He lived his last years in Lake Havasu. AZ
ORBIT & KRAFT in their last years were both sold to non R/C companies who had no concept about the hobby and mismanaged both into the ground.
ORBIT SCHEMATICS. I have a complete file, from the single channel to the last. They are available, but except for single sheet ones, no EMail - it has to be Kinkos and the post office. Ask:
[email protected]