# arduino

#### fafty

Joined Jan 26, 2012
7
ive made a two transistor amplifier and the output goes into an arduino, but b4 i put the the ouput into the arduino analog input i must put a smal signal diode, my teacher told me to do so, but i don understand why? can anyone help plz.

#### hgmjr

Joined Jan 28, 2005
9,029
Let's have a look at your two transistor amplifier.

hgmjr

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