What' s the model number? Or if' there is no label, can you post a photo of the unit in the photo section of the yahoogroup?
At 10:23 AM 06/25/09, you wrote: >Gents > >I have a federal signal "director" model siren in my 70's TV police >car that I use for shows etc. > >The siren works ok (hehe) but the PA sounds terrible. I suspect a bad mic. > >Does anyone have a schematic or a source for the service manual for this unit? > >Thanks in advance > >Ian R. >VA2IR