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Eagle 30/30 No. 19 – LM386 Audio Amplifier w/ Electret Microphone as Sensor, v0.1

by Carlyn Maw on June 20, 2011, no comments

Doh. Missed the cut off by a tinsy bit to go see Submarine directed by Richard Ayoade of “The IT Crowd” fame.  Totally worth it.

More on this one in the future… it’s a combo of the standard ITP version and some other circuits. To see the Physical Computing, pg 357 circuit you can go here:  http://itp.nyu.edu/physcomp/sensors/Reports/CondenserMicrophones – although I’m wondering if the rectifier is truly necessary, I’m wondering how using the bypass cap would effect it the behavior… and if looking fo a threshold… why not do it in code?

LOOONG answer to “what’s a bypass capacitor”  :  http://www.intersil.com/data/an/an1325.pdf

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