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Small beeping device activated by a button? Answered

I don't want it to be too loud, just at  audible levels with a quick beep. 
Preferably not larger than 1.5 inches. 

Thank you geniuses. 

Discussions

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gruffalo child

8 years ago

What about astable multivibrators? You don't need a lot of parts to build it.

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kelseymh

8 years ago

You should have been more specific? You just want a buzzer and a switch? That is trivial to make from three parts -- a piezoelectric speaker, a momentary contact switch, and a battery.

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Brent Blaskievichkelseymh

Answer 8 years ago

Like a 9-volt battery, a mini-tone transducer speaker and some kind of button to make the connection right? You think radioshack all these?

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kelseymhBrent Blaskievich

Answer 8 years ago

If you're in the States, RS is your simplest source, provided you already know what you want. If you happen to have a real electronics store in your town, go there instead. The RS drones couldn't sell you a battery to save their lives :-(

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Brent Blaskievichkelseymh

Answer 8 years ago

I pulled a small "transducer" out of a studfinder but when I wire it directly to a battery is barely makes any sound compared to when in the studfinder. What could I be missing?

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kelseymh

8 years ago

There was one in MAKE Magazine, Vol 14. A trivial Google search for "annoying beeping device" will get you both things to buy or to make yourself.

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Brent Blaskievichkelseymh

Answer 8 years ago

It should not be annoying. Wish it was trivial, I'm not that advanced to build something from scratch from a lot of parts. Thanks.