Bell & Howell Projector repair in California?

How can I fix my Bell&Howell 8mm multi motion projector?

bottom reel runs to fast?

Old Bell & Howell 8mm projector service center?

How do I I replace the worm wheel on my Bell & Howell 644 16mm projector??

bell and howell filmosound 8 model 458A?

b bell & howell super 8 won't advance film?

Bell & Howell Filmsound 8 Model 458?

how to troubleshoot my bell howell filmosound 1585?

How can I repair take up reel when it doesn't spin?

bell & howell 9mm cine projector?

B&H 471 loading?

Parts needed for a Bell & Howell Lumina ll LX20?