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Hack The Spy Ear and Learn to Reverse Engineer a Circuit

Step 4Picachu's Spy Ear

Picachu\
Picachu bought spy ears that are different than the one I used. It turn out they are missing two capacitors that makes it amplify less.
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7 comments
Mar 14, 2011. 7:49 AMtechh2 says:
why this circuit dosent work please send me explication for this circuit plz plz i ned this circuit
Nov 18, 2009. 4:19 AMyuvensius Edulgensiano says:
so, which one the true..? i dont understand about these.
Jul 17, 2009. 10:48 PMnamzer0 says:
there's something fishy about the schematics and the PCB Picture. They Don't Match!!! Please fix. I can't find where the 47uF capacitor is. in the schematic
Oct 16, 2008. 12:03 PMfreerunnin1 says:
hi, do you think you could send me a picture of where the mic is linked to? cos mine came off and i dont know where to solder them. thanx
Jun 26, 2008. 6:51 PMPicachu says:
Yep, chinese versions I guess... Just to make this accurate, like you said, those 2 ceramic capacitors are in fact 100nF, not 100uF as I labeled them.

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