In sci.electronics.repair Lockergnome1 wrote:
I recently acquired several model 3184-H lasers made by Hughes Aircraft
Company Electron Dynamics Division. [...] Thus far I have not been able
to find any information on these; does anyone know anything about these
devices?

Run, don't walk, to http://repairfaq.ece.drexel.edu/sam/lasertoc.htm .

Matt Roberds