If you're curious about the different versions of the brown face Federal Director and blue face Interceptor sirens, click on the video link below.
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I think it was a sound clip in a loop that Wailer had to work with. I'm sure it rises and falls normally in actual siren consolesInteresting video. The Wail on the Series 2A sounds strange on the wail. When it hit bottom instead of a steady up/down it sounds like it starts over. Mine doesn't do that it's nice and steady up/down. Not sure I have ever heard on do that before.
The 1970s PA15A series 1E and PA20A series 2E versions will make weird sounds if you catch the selector switch between wail and yelp.I remember in the 70's you could position the selector switch between the wail and the yelp and it would made a very strange sounding combination. Like Wayne's world; diddle loop-diddle loop-diddle loop.
Here you go down memory lane!I remember in the 70's you could position the selector switch between the wail and the yelp and it would made a very strange sounding combination. Like Wayne's world; diddle loop-diddle loop-diddle loop.