FHP jetsonic lightbars

[stubes]

i recently and purchased an original fhp lightbar for my 91 resto.
when i opened it, the rotators were turning very very slow, but i attribute that to the bar sitting out in almost 0 degree temps on my porch all day.
after a few hours of letting it warm up i tested it. everything works great.
i have nos domes for it, a speaker and after some TLC it will be like new.


i have some questions about how it is suppossed to work regarding the florida light patten.
it has the relay circuit board with the three drum things on it......

when i touch the red and red/white wires to power all 4 lights rotate.
when i touch the red and blue white wires all four rotators flash but don't turn
when i touch the red/red white and black white wires all 4 lights rotate but only 2 rears light up

when the blue/white wire is touched to power itself the two rear copper things click
when the black/white wire is touched to power itself the front copper thing clicks..
same for the red/white itself makes the relay things click..


any ideas? and if i happen to need the fhp style circuit board, anyone have a spare?
thanks