Dog whistle: Difference between revisions
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Adamcolton (talk | contribs) Created page with "http://www.ohmslawcalculator.com/555-astable-calculator * C: 0.1uF * R1: 0 * R2: .25 kΩ Also * 555 * push button * battery * battery clip * piezo speaker * 10 uF cap t..." |
Adamcolton (talk | contribs) No edit summary |
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* piezo speaker | * piezo speaker | ||
* 10 uF cap to isolate speaker | * 10 uF cap to isolate speaker | ||
I could also put one of the 5k pots in series with the .25k resistor to bring the range down to human hearing | |||
Latest revision as of 02:54, 15 April 2016
http://www.ohmslawcalculator.com/555-astable-calculator
- C: 0.1uF
- R1: 0
- R2: .25 kΩ
Also
- 555
- push button
- battery
- battery clip
- piezo speaker
- 10 uF cap to isolate speaker
I could also put one of the 5k pots in series with the .25k resistor to bring the range down to human hearing