I’m trying to set up a deterrent system and after a lot of thought I think I’ve figured out how to do this. This situation is fairly unique so I’m afraid suggestions other than the path I’m pursuing probably wouldn’t apply. So I’d like to keep the discussion on the right path if at all possible. My goal is to create a continuous stream of air that would blow into an Aztec Death Whistle. Youtube it if you haven’t heard one. The audio doesn’t nearly do it justice. The ‘whistle’ takes a good amount of breath to get going. A full set of lungs only gets about 3-4 seconds out of the thing. What I’ve found to be a good source of air for the whistle is my 18v battery powered Ridgid small shop blower, using the smallest 2Ah battery. It’s a small blower about 18" long. The whistle’s full volume may be reached using somewhat less air than this blower on full, but that’s generally the volume of air I’m talking about. This blower isn’t designed to run continuously so another style of air mover would have to be used for the final model.
The requirements are that the system needs to be able to run on both house electric or battery power. Normally it should run on house power, but if the electric gets shut off it will switch to battery. I’m hoping to get some kind of battery setup that’ll keep it running for about 2 hours before it runs out. The last requirement is that the whistle should not be heard to vary in tone at all if the house elec is shut off and the device has to switch to battery.
Sounds devious huh?
Any thoughts?