After nearly 10 years of looking, and watching, almost spending, I finally found a deal on an G.E. Powercall siren from the Philadelphia Police Department. My chief at my part-time organization said he had a G.E. Powercall. I offered him $250 on the spot without even looking at it. He took the offer and both of us have yet to look back. It was okay condition. Lot's or wear and tare on it. A little elbow grease and some white vinegar we clean up better. I just need to find a bracket and pa microphone.