Electronics > Beginners
need a speaker a resistor?
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Irukandji:
Hi :),
i have a speaker with 0,5W and 8 Ohm. Did i need a resistor when i put this mini speaker on a 9V batterie?
james_s:
Why would you put a speaker on a 9V battery? Do you also have some electronics to make it do something?
Irukandji:
I will try to make a noise with 2 transistors and 2 capacitor. But i don't know, if i need a resistor for the speaker, when i try this with a 9V battery.
tpowell1830:

--- Quote from: Irukandji on April 30, 2018, 06:47:40 pm ---I will try to make a noise with 2 transistors and 2 capacitor. But i don't know, if i need a resistor for the speaker, when i try this with a 9V battery.

--- End quote ---

Hi Irukandji, welcome to the forum. If you want better responses you will need to provide better information about what you are trying to do and some schematic of your work.
james_s:
Probably not specifically for the speaker, but post the schematic you are trying to use and that will help.
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