Help! My dearly beloved brown Altman 3.5Q has stopped lighting reliably. I've tried different lamps, different circuits, switching plugs. I suspect it might be corrosion in the base but I have no idea how to clean that out. Any ideas?
I have some altman 3.5Q with two different lenses and I'm trying to figure out which lens tube is which degree.
Anyone play with these and can tell which is which? I THINK the one of the left is 38° and the one on the right is 28° but I just want confirmation.