Radiation detector under $30

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This is a showcase of a geiger counter (doesn't really count) radiation detector that I designed and made late in 2013.

Sounds used below:

Title: "Atomic Bomb"
Author: Sound Explorer

Title: "Tornado Siren II"
Author: Delilah

Title: "Wind"
Author: Mark DiAngelo
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The link to the schematic etc appears to be broken.

jackstevens
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It would have need nice to use an active buzzer with a generated frequency close to the sound we are all familiar :) 
Please provide a link from where we can buy the tube. Thanks!

PopescuMarian
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What type you are using? Buzzer or piezo element?

alpergokcek
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Great video, have you ever thought of designing an RF detector ?

No need for the LCD display showing the watts per cm2 just an audio sound would be amazing. I have a Tenmars 195 and it`s a sharp little unit, the TM 196 it`s big brother is a pile of crap I know of 2 others who have had problems with them and I returned mine due to the readings being way above and below what they should be.

One that reads from 50 MHz up to 8 ghz with an audio speaker to hear the static sounds as the intensify and decrease.

If you ever do I`d love to build one or buy one from you...

Thanks and have a great day.

Cheers,
Terry

NoFearAwareness